Question

(13/8 - 7/12) : 5/6 - 3/10

Answer 1

$( \frac{13}{8} - \frac{7}{12}) \times \frac{6}{5} - \frac{3}{10}$
$( \frac{39}{24} - \frac{14}{24}) \times \frac{6}{5} - \frac{3}{10}$


$\frac{25}{24} \times \frac{6}{5} - \frac{3}{10}$
$\frac{5}{4} - \frac{3}{10}$
$\frac{25}{20} - \frac{6}{20}$
$\frac{19}{20}$

Answer 2

$( \frac{13}{8} - \frac{7}{12}) : \frac{5}{6} - \frac{3}{10} = \\ \\ \frac{13}{8} - \frac{7}{12} = \frac{13 \times 3}{8 \times 3} - \frac{7 \times 2}{12 \times 2} = \frac{39}{24} - \frac{14}{24} = \frac{39 - 14}{24} = \frac{25}{24} \\ \\ \frac{25}{24} : \frac{5}{6} = \frac{25}{24} \times \frac{6}{5} = \frac{25 \times 6}{24 \times 5} = { \frac{150}{120} }^{(30} = \frac{5}{4} \\ \\ \frac{5}{4} - \frac{3}{10} = \frac{5 \times 5}{4 \times 5} - \frac{3 \times 2}{10 \times 2} = \frac{25}{20} - \frac{6}{20} = \frac{25 - 6}{20} = \frac{19}{20}$