Question

(2 8/9+ 1 7/15)•(1/7+8/49)​

Answer 1

Ответ:

1 1/3

Пошаговое объяснение:

(2 8/9+ 1 7/15)*(1/7+8/49) =

1. 2 8/9 + 1 7/15 = 26/9 + 22/15 = 5*26+3*22/45 = 196/45 = 4 16/45:

2. 1/7 + 8/49 = 7*1+8/49 = 15/49:

3. 4 16/45 * 15/49 = 196/45 * 15/49 = 196*15/45*49 = 2940/2205 = 4*735/3*735 = 1 1/3

Answer 2

Ответ: $1\frac{1}{3}$