Thursday, November 16, 2017

Dividing Fractions

Dividing fractions is EXACTLY like multiplying fractions with one extra step

COPY CHANGE FLIP

Let's look at a few fraction division problems.








Notice that I COPY the 7/8, CHANGE the divide sign to X, then FLIP the 2nd fraction to be 8/1.  Then multiply like normal.












Here is another example







Here is one more:









This works for all fraction dividing problems including whole numbers and mixed numbers.  With whole numbers, put them over 1.  For example, 12 would be 12/1.  For mixed numbers, change them to improper fractions first.  for 4 1/3 would become 8/3.  Then copy, change and flip as necessary.

Some common mistakes include flipping both numbers, not changing the sign, or not changing whole numbers/mixed numbers appropriately.  BE SURE TO

COPY  CHANGE  THEN FLIP.

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