Выполните действие (5/8-2/5)+3/20

Question

Выполните действие (5/8-2/5)+3/20

Answer 1

1) 5/8 - 2/5 = 25/40 - 16/40 = 9/40
9/40 + 3/20 = 9/40 + 6/40 = 15/40 = 3/8