Question

(Дробь 3 7+ дробь 1/3): дробь 11 21

Answer 1

$\frac{3}{7}$+$\frac{1}{3}$=$\frac{9+7}{21}$=$\frac{16}{21}$

$\frac{16}{21}$:$\frac{11}{21}$=$\frac{16*21}{21*11}$=$\frac{16}{11}$=1$\frac{5}{11}$