Question

3 1/8-(4 5/16+1 1/4) =?

-7 3/5- (4 2/15- 5 2/3 ) = ?

- 23 1/2- (5 3/4 +2 7/20) = ?

- 1/3- (3 7/18 - 1 2/9 ) = ?

Answer 1

 1) 3 1/8-(4 5/16+1 1/4)=
45/16+11/4= 45/16+44/16=99/16 или 6 целых3/16
31/8-99/16=62/16-99/16=-33/16 или -2целых 1/16
Ответ: -2целых 1/16
2)