Dividing Fractions.

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Presentation transcript:

Dividing Fractions

KEEP – CHANGE - FLIP To Divide Fractions: Keep the first fraction Change the division sign to a multiplication sign Flip the second fraction upside down Multiply Simplify

REMEMBER When you flip the second fraction, you are writing that fraction’s reciprocal. 3 5 5 3

Example 1 1 3 1 2 KEEP: ÷ CHANGE: FLIP: 1 3 2 1 2 3 x =

Example 2 4 4 ÷ 5 9 Rewrite: 4 9 36 1 4 5 x = = 4 5 20

Example 2 4 5 ÷ 9 4 5 x 9 36 20 = = 1 36 20 16 1 4 5 = 36 = 20

Example 3 12 3 ÷ 5 1 USE CANCELING: 20 4 12 5 20 x = = 1 1 3 1

Example 4 1 2 ÷ 6 1 Rewrite: 1 1 1 x = 6 2 12