Question

Выполните действие : А) 5/16+11/12 Б) 7/24-5/18 В) 3/5+0,04 Г) 2/3-0,5

Answer 1

А)59/48;Б)1/72;В)16/25;Г)1/6

Answer 2

А) 5/16 + 11/12 = (5*12 + 11*16) / (16*12) = (60 + 176) / 192 = 236 / 192 = 59 / 48

Б) 7/24 - 5/18 = (7*18 - 5*24) / (24*18) = (126 - 120) / 432 = 6 / 432 = 1 / 72

В) 3/5 + 0,04 = 3/5 + 4/100 = 60/100 + 4/100 = 64/100 = 16/25

Г) 2/3 - 0,5 = 2/3 - 1/2 = (2*2 - 3*1) / (3*2) = (4 - 3) / 6 = 1/6