Question

3)4целых пять седмых + 1 целая две третих=​

Answer 1

Ответ:

$4 \frac{5}{7} + 1 \frac{2}{3 } = 5 \frac{15 + 14}{21} = 5 \frac{29}{21} = 6 \frac{8}{21}$

Answer 2

$4\frac{5}{7}+1\frac{2}{3}=(4+1)\cdot(\frac{5}{7}+\frac{2}{3})=5+\frac{29}{21}=5+1\frac{8}{21}=5+1+\frac{8}{21}=6+\frac{8}{21}=6\frac{8}{21}$