Question

2/5 and 3/8 common denominator

Answer 1

40

Explanation:

The common denominator = 5×8

= 40

Answer 2

it's 40

Explanation:

`(2)/(5) ( * )/( * ) (8)/(8) = (16)/(40) \\ (3)/(8) ( * )/( * ) (5)/(5) = (15)/(40)`

so the common denominator is 40