Question

Select the correct solution for the expression. 2/5 + 3/8

A. 2/5 + 3/8 = 5/13

B. 16/40 + 15/40 = 31/40

C. 10/40 + 24/40 = 34/40

D. 2/5 + 3/8 = 6/40

Answer 1

b

because when you try to find the common denominator the lowest number is 40. so you then multiply the 2x8 and the 3x5 that gives you 16/40 + 15/40 = 31/40