Question

[ ( 2/5 + 1/2) x 2/9 + 3/20] : 7/6

Answer 1

$[(\frac{2}{5}+\frac{1}{2})\times \frac{2}{9}+\frac{3}{20}]:\frac{7}{6}=$

$[(\frac{4}{10}+\frac{5}{10})\times \frac{2}{9}+\frac{3}{20}]:\frac{7}{6}=$

$[\frac{9}{10} \times \frac{2}{9}+\frac{3}{20}]:\frac{7}{6}=$

$[\frac{18}{90}+\frac{3}{20}]:\frac{7}{6}=$

$[\frac{4}{20}+\frac{3}{20}]:\frac{7}{6}=$

$\frac{7}{20}:\frac{7}{6}=$

$\frac{7}{20}\times \frac{6}{7}=$

$\frac{6\times 7}{20\times 7}=$

$\frac{6}{20}=$

$\frac{3}{10}$