Question

Упростите выражение :

$4 \frac{3}{8} \times 4b \times 2 \frac{4}{7}$
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Answer 1

Ответ:

$4 \frac{3}{8} \times 4b \times 2 \frac{4}{7} = \frac{8 \times 4 + 3}{8} \times 4b \times \frac{7 \times 2 + 4}{7} = \frac{35}{8} \times4b \times \frac{18}{7} = \frac{35 \times 4b \times 18}{8 \times 7} = 5 \times 9 \times b = 45b$