Срочно кто знает!!!!!!!!

Решите задачу:

$\frac{24}{25} + \frac{3}{5} = \frac{1 \times 24 + 5 \times 3}{25} = \frac{39}{25} = 1 \frac{14}{25}$

$\frac{11}{36} + \frac{7}{12} = \frac{1 \times 11 + 3 \times 7}{36} = \frac{32}{36} = \frac{8}{9}$

$\frac{3}{4} + \frac{19}{40} = \frac{10 \times 3 +1 \times 19 }{40} = \frac{49}{40} = 1 \frac{9}{40}$

$\frac{5}{6} + \frac{31}{42} = \frac{7 \times 5 + 1 \times 31}{42} = \frac{66}{42} = \frac{11}{7} =$

$1 \frac{4}{7}$