Question

помогите пожалуйста ​

Answer 1

Ответ:

1.

$\frac{7}{16} \times \frac{8}{49} = \frac{1}{2} \times \frac{1}{7} = \frac{ 1}{14}$

$\frac{56}{69} \times \frac{69}{77} = 8 \times \frac{1}{11} = \frac{8}{11}$

$\frac{7}{9} \times 18 = 7 \times 2 = 14$

$3 \frac{3}{8} \times \frac{7}{9} = \frac{27}{8} \times \frac{7}{9} = \frac{3}{8} \times 7 = \frac{21}{8}$

$4 \frac{4}{7} \times 2 \frac{11}{12} = \frac{32}{7} \times \frac{11}{6} = \frac{16}{7} \times \frac{11}{3} = \frac{176}{21}$