Question

Задание на картинке:

Answer 1

1. $\frac{70*21\frac{2}{3}}{100}=\frac{70*65}{100*3}=\frac{7*13}{2*3}=\frac{91}{6}=15\frac{1}{6}$

2. $70+15\frac{1}{6}=85\frac{1}{6}$