Question

Помогите пожалуйста пример на фото.

Answer 1

Ответ:

1/2+4/7-3/14=6/7

17/20-3/10-11/60=11/30

Answer 2

$1)\frac{1(7}{2} +\frac{4(2}{7} -\frac{3(1}{14} =\frac{7+8-3}{14} =\frac{12}{14} =\frac{6}{7} \\\\4)\frac{17(3}{20} -\frac{3(6}{10} -\frac{11(1}{60} =\frac{51-18-11}{60} =\frac{22}{60} =\frac{11}{30}$