Multiply/Divide

When you multiply fractions, just multiply the numerator by the numerator, and the denominator by the denominator. Reduce if possible.

Example:  1 ¼ pizzas  x 3

3 times 3 q

 

 

 

 

 

 

 

1 ¼  x 3 = 3 ¾

Procedure:

  • Rewrite the mixed numbers as improper fractions
  • Multiply the fractions
  • Rewrite the improper fraction as a mixed number

Example: Multiply 1 ¼  x 3

MulMix

 

 

 

Multiplying Fractions

Multiplying Fractions 2

Multiplying Mixed Numbers

 

 

 

 

 

FR26      Fractions_x_Whole

FR24      Multiply_Fractions

FR25      Mixed_Numbers_x_Fraction

FR29      Multiplying Fractions with Cross Cancelling

 

 

 

 

Dividing Fractions

Dividing Fractions by Cross Multiplication

Dividing Fractions by Using the Reciprocal

Dividing Mixed Numbers

 

 

 

FR30      Dividing Fractions with Cross Cancelling

MN10    Mixed_Numbers Divided by Whole

MN11    Mixed Numbers Division

 

Dividing Mixed Numbers

First, rewrite all mixed numbers as improper fractions, then invert and multiply.

Dividing Mixed Numbers By Whole Numbers