Question

Помогите плиз
$\frac{5}{16} + \frac{7}{12} ; \frac{3}{5} - \frac{4}{7} ; 1-\frac{15}{36} ; 6-\frac{5}{13}$

Answer 1

5/16+7/12=15/48+28/48=43/48

3/5-4/7=21/35-20/35=1/35

1-15/36=36/36-15/36=21/36=7/12

6-5/13=5 8/13