Question

5: 5/6 + 1 2/7 *:5 5/6 - 4 3/4 =?
Заранее спасибо ;)

Answer 1

$\displaystyle 5:\frac{5}{6}+1\frac{2}{7}*5\frac{5}{6}-4\frac{3}{4}=5*\frac{6}{5}+\frac{9}{7}*\frac{35}{6}-\frac{19}{4}=6+3*\frac{5}{2}-\frac{19}{4}=6+\frac{15}{2}-\frac{19}{4}=\\\\\frac{35}{4}=8\frac{3}{4}=8,75$