How many 1/5 pieces are in 4/5

4

Step-by-step explanation:

Take 1/5 divided by 4/5. In order to divide fractions you take the problem:

(4/5) / (1/5)

Then you flip the second fraction and multiply:

4/5 x 5/1

20/5

4

You could also just divide 4 by one, since the two fractions have the same denominator