Question

помогите пожалуйста...​

Answer 1

9)2(4/7)
10)5(7/10)
11)2(4/7)

Answer 2

$5\frac{2}{7} -2\frac{5}{7} =2\frac{4}{7} =\frac{18}{7}$

$14\frac{6}{20}-8\frac{12}{20}=14\frac{3}{10}-8\frac{6}{10}=5\frac{7}{10} = \frac{57}{10} =5,7$

$8\frac{3}{14}-5\frac{9}{14}=2\frac{8}{14}=2\frac{4}{7}=\frac{18}{7}$