Question

397....................​

Answer 1

Ответ:

вот

Пошаговое объяснение:

1) 1 3/4+(-1/2)=1 3/4-1/2=1 3/4-2/4=1 1/4=1.25

2)5 2/9+(-1/3)=5 2/9-1/3=5 2/9-3/9=4 11/9-3/9=4 8/9

3)4 3/8+(-1/4)=4 3/8-1/4=4 3/8-2/8=4 1/8=4.125

4)5 1/2+(-8 5/6)=11/2-53/6=33/6-53/6=-20/6

5)4 1/3+(-7 5/9)=4 1/3-7 5/9=13/3-68/9=39/9-68/9=-29/9

6)3 3/8+(-9 1/2)=3 3/8-9 1/2=27/8-19/2=27/8-76/8=-49/8

7)2 1/3+(-4 5/6)=2 1/3-4 5/6=7/3-29/6=14/6-29/6=-15/6

8)1 1/12+(-5 1/6)=1 1/12-5 1/6=13/12-31/6=13/12-62/12=-49/12

9)3 2/15+(-9 1/3)=3 2/15-9 1/3=47/15-28/3=47/15-140/15=-93/15