Answer:
6/25 of the fish are red guppies.
Explanation:
2/5 of the fish in Gary's fish tank are guppies.
Out of 2/5 the of the fish in Gary's fish tank 3/5 of the guppies are red.
So, The fraction of fish in Gary's tank are red guppies = 3/5 x 2/5
=6/25
Hope this helps!