Question

Решите пожалуйста :3

Answer 1

$1 frac{1}{7} + frac{3}{5} - frac{31}{35} = \ = frac{8}{7} + frac{3}{5} - frac{31}{35} = \ = frac{40}{35} + frac{21}{35} - frac{31}{35} = \ = frac{30}{35} = frac{6}{7}$

Answer 2

1 1/7 + 3/5 – 31/35 =

8/7 + 3/5 – 31/35 =

40/35 + 21/35 – 31/35 =

61/35 – 31/35 =

30/35 =

6/7