Question

Помогите пожалуйста!!!​

Answer 1

$1) \frac{2 \times 5}{3 \times 6} = \frac{1 \times 5}{3 \times 3} = \frac{5}{9}$

$2) \frac{2 \times 7}{9 \times 4} = \frac{1 \times 7}{9 \times 2} = \frac{7}{18}$

$3) \frac{3 \times 5}{20 \times 2} = \frac{3 \times 1}{4 \times 2} = \frac{3}{8}$

$4) \frac{4 \times 3}{9 \times 7} = \frac{4 \times 1}{3 \times 7} = \frac{4}{21}$