To divide 4 by 1/5 we can either multiply the first fraction by its reciprocal OR we could find a common denominator for both fractions. In this video we'll use the reciprocal method. Both methods produce the same answer in fraction form.

First we change 4 ÷ 1/5

to

4 times 5/1 (4 x 5/1)

This gives us 20/1 which is equal to 20.

So 4 ÷ 1/5 = 20/1 also written as 20.

Note that if you multiplied 20 times 1/5 you would end with 4.

Multiplying a fraction by its reciprocal is often easier for more complicated fractions where finding a common denominator is more challenging.

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