7/12+4/36= 15/27-1/9= 11/14-1/7= 12/15-3/5= 15 7/24+8 1/3=

Решите задачу:

$\frac{7}{12} + \frac{4}{36} = \frac{7 \times 3}{12 \times 3} + \frac{4}{36} = \frac{21}{36} + \frac{4}{36} = \frac{25}{36}$
$\frac{15}{27} - \frac{1}{9} = \frac{5}{9} - \frac{1}{9} = \frac{4}{9}$
$\frac{11}{14} - \frac{1}{7} = \frac{11}{14} - \frac{2}{14} = \frac{9}{14}$
$\frac{12}{15} - \frac{3}{5} = \frac{4}{5} - \frac{3}{5} = \frac{1}{5}$
$15 \frac{7}{24} + 8 \frac{1}{3} = \frac{15 \times 24 + 7}{24} + \frac{8 \times 3 + 1}{3} = \frac{367}{24} + \frac{25}{3} = \frac{367}{24} + \frac{200}{24} = \frac{567}{24} = \frac{189}{8} = 23 \frac{5}{8}$