Try our Free Online Math Solver!
solve my algebra problem with a calculator and fractions for free ,
Maths worksheet for highest common factor & least common factor for year 7 ,
multiply and divide rational expressions calculator ,
math help containing equivalent fractions decimals and percentages ,
slow steps for balancing chemical equations with least common multiples ,
how to solve second order linear nonhomogeneous differential equations,
fraction and decimal multiplying and dividing worksheets,
square odd integer multiple of 8 plus one triangle number ,
multi root quadratic equation solver TI-83,
adding, subtracting, multiplying, dividing integers ,
free advanced algebra add subtract rational expressions,
example of pictures of plotting points on the graphing calculator,
Like Terms Simplifying Algebraic Expressions Junior High ,
techniques in getting the least common denominator in college algebra ,
slow steps balancing chemical equations with least common multiples ,
convert decimal to fraction algebra worksheet ,
help with the algebraic expression four times a number divided by three ,
graphing linear equations on the coordinate plane powerpoint,
square roots and cube roots activity ,
Simplifying a sum of radical expressions calculator ,
error 13 dimension on a ti 86 graphing calculator solving linear equations ,
adding ,subtracting ,multiplying ,and dividing fractions ,
dividing algebraic terms online free calculator,
online calculator that solves complex trinomials,
What are sqaure root method of Quadratic Equations?,
Pre-Algebra chapter 2 evaluate expressions, worksheet triangle expressions answers ,
linear equation in two variables subject to linear constraint inequalities ,
free help on a 4>3 solve the inequality. graph the solutions on a number line ,
simple pre-algebra equations ,
practice worksheets on adding, subtracting,multiplying,and dividing decimals. for 6th grade ,
7th grade level variables and equations explanations Equations Substitution variables ,
how use my Casio Calculator for solving linear equations,
quadratic equations square root property calculator ,
integer problems adding multiplying dividing subtract ,
how do you do the square root on the TI-83 plus graphic calculator? ,
solve nonlinear differential equation first order ,
solving nonhomogeneous second order linear differential equation ,
converting base 2 fraction to decimal fraction ,
method to solve third order polynomials ,
adding subtracting multiplying dividing integers ,
worksheets solving addition and subtraction equations ,
greatest common factor for three number with variables ,
worksheet solving addition and subtraction equations ,
how to solve exponential probability in TI-83 Plus calculator ,
Solving Non Linear Simultaneous Equations ,
HOW DO I DIVIDE A FRACTION BY A RADICAL FRACTION ,
algebraic formula percentage number variable ,
solving addition and subtraction equations ,
combining like terms powerpoint lesson ,
adding and subtracting positive and negative integers free worksheets,
solving simultaneous equations with excel equation solver ,
solving 2nd order differential equation ,
exponents Simplifying Multiplication Expressions Lesson Plan,
solving second order non-homogeneous differential equations,
solving basic algebra equations homework word problem ,
how do you divide and times add subtract integers worksheet ,
worksheets on add subtract multiply divide fractions ,
solving second order linear difference equation ,
rules for adding variables in a square root,
solving quadratic equations 3 variables ,
Quadratic Equation Calculator factor ,
pre algebra adding and subtracting integers worksheet ,
Java method Convert Decimal Numbers to time ,
find suare root of real numbers ,
least common denominator calculator ,
prealgebra solving equations by multiplying and dividing worksheet,
adding and subtracting fractions with like denominators worksheet ,
factoring polynomials with a cubed term, tutorial ,
dividing fractions and mix numbers cheat problem solver,
slope solving by elimination online calculator ,
Like Terms Simplifying Algebraic Expressions Activities Lessons ,
equation of the line solver ordered pairs,
multiplying,dividing,adding,subtracting integers ,
solving multiple variable polynomial equation ,
examples of quadratic equations with fractional exponential,
how to solve multivariable algebra equation with fractions ,
quadratic equation extracting square root ,
solving quadratics by factoring powerpoints ,
value for variable expression radicals roots ,
Uniqueness of forcing terms in linear partial differential equations ,
Multiplying rational expression fractions solver ,
convert decimal to fraction - formula,
solve my algebra problem with a calculator and fractions ,
math poems with the words, prime numbers, common multiples,common factors ,
simplify radical expressions calculator root ,
solving third order linear equations ,
fractions formula adding subtracting multiplying,
solving quadratic equations completing the square,
Algebra I help turning rational equations into linear equations ,
test for adding and subtracting negitive and positive numbers,
integers adding, subtracting, multiplying, dividing worksheet,
Adding, subtracting, multiplying and dividing Integer worksheets ,
greatest common factor of two numbers is 871 ,
worksheet on adding,subtracting,multiplying,dividing integers ,
convert decimal to square root fraction,
combining like terms in algebraic expressions worksheets ,
online factoring of complex quadratic equations with variables only ,
adding subtracting dividing multiplying integers games ,
pre algebra distributive property prentice hall ,
Combining Like Terms pre-algebra worksheet ,
simplify dividing algebra expressions online calculator free ,
simplifying complex rational expressions solver ,
simplify square root of difference of two squares ,
solving radicals and square roots ,
finding the least common denominator for two rational expressions ,
solving absolute value and radical equations using restrictions,
solving quadratic equations by completing the square ,
how to solve first order linear differential equations using laplace transform ,
adding subtracting multiplying and dividing integers ,
solving second order nonhomogeneous differential equation ,
ti-83 plus solving systems of linear equations in three variables,
solve nonlinear equation system maple symbolic ,
simplifying exponents and square root calculator ,
solving second order nonlinear differential equations,
simplified radical form square roots ,
solving cubed polynomials equations ,
solving nonhomogeneous 2nd order differential equations ,
order of fractions from least to greatest Glencoe,McGraw-Hill,
solving nonlinear differential equations matlab ,
multiplying dividing adding subtracting fractions,
find vertex of absolute value equations ,
solving partial differential equations by factoring Thank you for visiting our site! You landed on this page because you entered a search term similar to this:
convert mixed number to decimal.We have an extensive database of resources on
convert mixed number to decimal. Below is one of them. If you need further help, please take a look at our software
"Algebrator", a software program that can solve any algebra problem you enter!
Practice Problems: | Answers: |
| |
Rule 2: To multiply fractions or mixed numbers:1) Convert all mixed numbers to fractions
2) Multiply the numerators together and multiply the denominators together.(In multiplication one can reduce before performing the operation.)
Example:
Rule 3: To divide fractions or mixed numbers:1) Convert all mixed numbers to fractions
2) Invert the divisor and change the operation to multiplication
3) Complete the multiplication
Example:
Notation: Whole number exponents tell the number of times touse the base as a factor
Example:
Definition: =b if and only if b^{n} = a for some number b
Example: since
Practice Problems: | Answers: |
| |
Rule 4: To add or subtract decimals:1) Line up the decimal points
2) Fill in trailing zeros
3) Add or subtract as you would whole numbers
Rule 5: To multiply decimals:1) Multiply as you would whole numbers
2) Count the number of decimal places in each factor
3) Mark off the same number of decimal places in the answer as the sumof the number of decimal places in the factors.
Rule 6: Rule to divide decimals1) Move the decimal behind the last digit in the divisor
2) Move the decimal the same number of decimal places to the right inthe dividend (add zeros if necessary)
3) Divide as with whole numbers, being sure to position digits correctly
4) The decimal in the answer will be directly above the decimal in thedividend
Example:
Practice Problems: a) 2.31 + 7 + 5.6 b) 14.7 - 9.23 c) (28.1)(4.63) d) 269.04 47.2 e) (3.1)^{2} | Answers: a) 14.91 b) 5.47 c) 130.103 d) 5.7 e) 9.61 |
Rule 7: To evaluate arithmetic expressions, perform the operationsin the following order:1) Work inside symbols of inclusion - working from inside out
2) Raise to powers and take roots
3) Multiply and divide from left to right
4) Add and subtract from left to right
Rule 8: To evaluate formulas:1) Replace the letters by their given values
2) Follow the order of operations to evaluate
Practice Problems: Evaluate | Answers: |
a) 2(3) + 4(6 - 3) b) 4(b + 3C) for b = 2 and C = 5 | a) 18 b) 68 |
Rule 9: To convert:1) Fractions to decimals, divide the numerator by the denominator
2) Decimals to fractions, write the fraction as the decimal is readand reduce
3) Fractions or decimals to percents, multiply by 100%
4) Percents to fractions or decimals, divide by 100%
Examples:
2) Convert 0.28 to a fraction4) Convert 26.8% to a decimal5) What is 56% of 320?
Practice Problems: Convert as indicated | Answers: |
a) 0.173 to a fraction c) 4.3% to a decimal | c) 0.043 d) 0.15 e) 5 |
APPLICATION PROBLEMS
1. A farmer harvested 48,280 pounds of potatoes from onefield and 23,720
pounds from another. The potatoeswere packed in boxes with 24 pounds
per box. How many boxes were neededto pack the potatoes?
2. Bob bought 10 1/3 pounds of hamburger. He used2 pounds to make spaghetti.
How many 1/3-pound burgers canbe made from the remaining hamburger?
3. Three pieces of board, each 2 3/4 feet long, are cutfrom a 10-foot board. How
long is the remaining piece ofboard?
4. Long distance phone calls cost $.45 for the first threeminutes and $.12 for each
additional minute. Find the costof a 15-minute call.
5. John can afford to spend 15% of his monthly pay for rent. If he makes $1300 a
month, how much can he afford to payfor rent?
6. A recent survey indicated that thirty-five percent ofthe students at RCC are
taking math. If 520 students aretaking math, how many students are enrolled
at RCC?
7. A wallpaper hanger charges $255 for labor and materialsfor a particular job.
The cost of materials represents 25%of the total cost. Find out how much the
wallpaper hanger receives for her labor.
8. BB&T wants to know what percent of its customersare late with their loan
payments. A check of 8500 outstandingloans showed that 2550 customers
were late with their payments last month. What percent of BB&Ts customers
were late with their payments last month?
9. In a class of 300 students, 10% received As, 20% received Bs, 20%received
Ds, and 10% received Fs. Howmany students received Cs?
Answers
1. 3000 boxes
2. 25 burgers
3. 1 ¾ feet
4. $1.89
5. $195
6. about 1486 students
7. $191.25
8. 30%
9. 120 students
Part II
Rule 10: To add rational numbers:Case 1 (Signs Alike)
Determine the sum of their absolute values and keep the sign.
Case 2 (Signs Different)
Determine the difference of their absolute values and take the signof the number having the larger absolute value.
Examples:
Rule 11: Let a and b be rational numbers:a - b = a + (-b)
Examples:
Rule 12: To multiply rational numbers, multiply their absolute values.If the numbers have like signs, the answer will be positive. If the numbershave unlike signs, the answer will be negative.Examples:
The sign rule for division is similar to the rule for multiplication.
Examples:
One must not forget the rule for the order of operations:
Example:
Practice Problems: | Answers: |
a) -2 - 3 | a) -5 |
b) (-4)(5)(-3) | b) 60 |
c) -6 + 10 | c) 4 |
d) 12 (-2)^{2} | d) 3 |
e) -8(-3) - 6(4) | e) 0 |
Rule 13: To combine like terms, keep the common literal partand add the numerical coefficients.Examples:
Practice Problems: | Answers: |
a) 3a - 4b + a b | a) 4a - 5b |
b) (x - 3y) - (x + y) | b) -4y |
c) 3a - 4(2a - 3b) | c) -5a + 12b |
Rule 14: To solve linear equations having one variable:1) Get all variable terms on one side of the "equals" and get constantterms on the other side
2) Combine like terms
3) Divide both sides by the coefficient of the variable
Practice Problems: | Answers: |
| Solve for x | |
| a) 5x - 3 = 2x + 7 | |
| b) 4 -(x - l) = -2x + 6 | b) x = 1 |
Examples: Solve for x
Solve for
Practice Problems: | Answers: |
| Solve for x | |
| a) 3x - 4y = 6 | |
| b) 2 - 3x = 7a - 1 | |
Rule 15: To graph linear equations having two variables:1) Solve for y
2) Make a table of values
3) Plot the points
4) Draw the line
Example: Graph 2x + 3y = 6
3) 4)
Practice Problem:
Graph 2x + y = 1 Answer:
Part III
Definition: Let x be a rational number and let a and b be naturalnumbers1) (xused as a factor a times)
2)
3)
4)
Examples:
Practice Problems: | Answers: |
| |
Rule 16: (Properties of Exponents) Let x, y, a, and b representrational numbers.
Examples:
Practice Problems: | Answers: |
a) (2x^{-3}y)^{2}(3xy)^{3} | a) |
b) | b) |
The following examples illustrate operations with polynomials.Examples:
Practice Problems: Perform the operation. | Answers: |
| |
Rule 17: To factor polynomials:1) Factor out the greatest common factor.
2) If you have two terms, use a formula.a^{2} - b^{2} = (a - b)(a + b)
a^{3} - b^{3} = (a - b)(a^{2} + ab + b^{2})
a^{3} + b^{3} = (a + b)(a^{2} - ab + b^{2})3) If you have three terms, use trial and error.
4) If you have more than three terms, try to group to create one ofthe above conditions.
5) Be sure to repeat above steps until all factors are prime.
Examples:
Practice Problems: Completely factor. | Answers: |
| |
The procedures for performing operations on algebraic fractions aresimilar to those for common fractions.
Examples:
Practice Problems: | Answers: |
| |
Properties of Radicals: Let aand b denote real numbers
Rule 18: To write radical expressions in simplest terms:1) Rationalize denominators.
2) Reduce radicals.
3) Reduce indices.
Examples: (Assume that all variables represent positive real numbers.)
Practice Problems: Simplify. | Answers: |
| |