Question

Выполните действия:
2/7+3/5=
3/8-2/11
(3/7-1/4)+(2/3-3/5)+0,5

Answer 1

2/7+3/5 = 31/35
3/8+2/11 = 49/88
(3/7-1/4)+(2/3-3/5)+0,5 = 5/28+1/15+1/2 = 313/420

Answer 2

Спасибки С;