Question

Three fifths of the cast in a musical have to sing.What fraction on the cast does not have to sing?

Answer 1

The term "three fifths" is equivalent to
`(3)/(5)`.
If
`(3)/(5)` of the cast is singing, then we just have to find the rest of the fraction.

`1- (3)/(5) \\ (5)/(5)- (3)/(5) \\ (2)/(5)`

Answer 2

well, 3/5 of the cast is singing and the whole group would be 5/5 so then that makes 5/5 minus 3/5 which equals 2/5 don't have to sing!