Question

Выполните действие а)7/20+11/30,б)19/60-8/45,в)5/48+17/36,г)11/30-16/45

Answer 1

а) 7/20 + 11/30 = 21/60 + 22/60 = 43/60
б) 19/60 - 8/45 = 57/180 - 32/180 = 25/180 = 5/36
в) 5/48 + 17/36 = 15/144 + 68/144 = 83/144
г) 11/30 - 16/45 = 33/90 - 32/90 = 1/90

Answer 2

Спасибо