Question

Найдите значение выражения 10 2/7:1 11/21

Answer 1

$10\frac{2}{7}:1\frac{11}{21}=\frac{72}{7}:\frac{32}{21}=\frac{72}{7}*\frac{21}{32}=\frac{9}{1}*\frac{3}{4}=\frac{27}{4}=6\frac{3}{4}=6,75$