Miguel tells his teacher that One-fifth is the same as 20%. Which best justifies Miguel’s answer?

Question

5 goes into 100 twenty times, so 20% is the answer.
5 goes into 20 four times, and 5 times 4 is 20, so 20% is the answer.
5 goes into 100 twenty times, and 1 times 20 is 20, so 20% is the answer.
5 goes into 20 four times, and 5 times 4 times 1 is 20, so 20% is the answer.

Answer 1

The best justification for Miguel's answer is:

5 goes into 100 twenty times, and 1 times 20 is 20, so 20% is the answer.

This reasoning accurately shows the relationship between one-fifth and 20% by demonstrating that one-fifth of 100 is 20, which corresponds to 20%.