Question

Решите 5 4/19 * 3 4/7 + 1 15/19 : 7/25 - 1 2/3

Answer 1

$\frac{99}{19}* \frac{25}{7}+ \frac{34}{19}* \frac{25}{7}-1 \frac{2}{3} =\frac{25}{7}*( \frac{99}{19} + \frac{34}{19} )-1 \frac{2}{3}= \frac{25}{7}* \frac{133}{19}-1 \frac{2}{3}=\frac{25}{7}*7-1 \frac{2}{3}=25-1 \frac{2}{3}=24 \frac{3}{3}-1 \frac{2}{3}=23 \frac{1}{3}$