Question

Вычислите: 1 5/6-11/12. 7/20+3/20. 25/27-7/27

Answer 1

$1\frac{5}{6}-\frac{11}{12}=\frac{11}{6}-\frac{11}{12}=\frac{22}{12}-\frac{11}{12}=\frac{11}{12}$
$\frac{7}{20}+\frac{3}{20}=\frac{10}{20}=\frac{1}{2}=0,5$
$\frac{25}{27}-\frac{7}{27}=\frac{18}{27}=\frac{2}{3}$