Try the Free Math Solver or Scroll down to Tutorials!

 Depdendent Variable

 Number of equations to solve: 23456789
 Equ. #1:
 Equ. #2:

 Equ. #3:

 Equ. #4:

 Equ. #5:

 Equ. #6:

 Equ. #7:

 Equ. #8:

 Equ. #9:

 Solve for:

 Dependent Variable

 Number of inequalities to solve: 23456789
 Ineq. #1:
 Ineq. #2:

 Ineq. #3:

 Ineq. #4:

 Ineq. #5:

 Ineq. #6:

 Ineq. #7:

 Ineq. #8:

 Ineq. #9:

 Solve for:

 Please use this form if you would like to have this math solver on your website, free of charge. Name: Email: Your Website: Msg:

# Fractions

Need To Know Prime Factoring Operations on Fractions Simplify (Reduce) Multiply Divide Add Subtract

Vocabulary

Definitions:

Prime numbers – are numbers that can only
be factored by one and itself.
{

Prime factoring - means to write a
number as a product of only prime numbers.

Prime Factoring

Prime factor 48

Prime factor 420

Reducing Fractions

Reduce 5/15  9/21

Reduce 279/310

Multiplication of Fractions

Simplify each expression Recall fraction multiplication Division of Fractions

Recall – Division of fractions is the same
as

Simplify: end

Need To Know How to add/subt. fractions with same
denominator Rename fractions Find Least Common Denominator How to add/subt. fractions with different
denominator

Recall the method to add fractions

Recall the method to subtract fractions

Renaming Fractions

Recall how to use the “fancy one” to
rename fractions. Least Common Denominator

Definition –
The least common denominator (LCD) for a
set of denominators is the smallest multiple
that each denominator can divide into evenly.

Examples: Find the LCD How to find the LCD

There are three ways to find LCD’s

Use intuition
Use a list of multiples
Use the prime factoring method

How to find the LCD

Listing multiples method
Example: Find the LCD of 12 and 18

How to find the LCD

Prime factor method
Example: Find the LCD of 60 and 42.

Steps to find LCD

1. Prime factor each
denominator

2. Create a product using each factor raised to the
highest exponent
that occurs in any
one factoring How to + or – fraction

Find the LCD
Rename each fraction
(use the “fancy one”)
Reduce

Practice How to + or – fraction
1. Find the LCD
2. Rename (use the “fancy one”)
4. Reduce

Simplify: Simplify: Practice How to + or – fraction
1. Find the LCD
2. Rename (use the “fancy one”)  