Question

1/12 + (- 1/4)=
- 3 8/25 + (-2 3/20)=
- 5 + 2 3/7=

Выполните действия

Answer 1

1/12 + (- 1/4)=1/12-1/4=1/12-3/12=-2/12=-1/6
- 3 8/25 + (-2 3/20)=-3 8/25-2 3/20=
=3 32/100-2 15/100=1 17/100
- 5 + 2 3/7=--4 7/7+2 3/7=-2 4/7