Question

two-fifths of the tank is guppies.one-fourth of the guppies are red.what fraction of the tank is blue guppies?

Answer 1

First, we need to find what part of the total number of guppies the
`(1)/(4)` blue guppies represent.

`1-(1)/(4)=(3)/(4)`

Then, we multiply that value by the fraction of the tank the guppies occupy.

`(2)/(5) *(3)/(4) =(6)/(20)=(3)/(10)`

Your answer is
`(3)/(10)`.