Question

1,2·2,25·0,15
------------------- =
0,9·1,5·4,2
помогите пж

Answer 1

$\frac{1.2 \times 2.25 \times 0.15}{0.9 \times 1.5 \times 4.2} = \frac{120 \times 225 \times 15}{90 \times 150 \times 420} = \frac{45 \times 5 \times 30 \times 4}{30 \times 3 \times 7 \times 60} = \frac{45 \times 5 \times 4}{3 \times 7 \times 60 } = \frac{5}{7}$