Question

Пожалуйста, помогите, даю 50 б а лл ов!! ​

Answer 1

Ответ:

1) (7/15 - 1/6) + 2/5 = 9/30 + 2/5 = 21/30

2) (3/8 - 1/9) + 25/36 = 35/72 + 25/36 = 85/72 = 1 13/72

3) (8/9 - 5/6) + 2/3 = 1 13/18 + 2/3 = 1 25/18 = 2 7/18

4) (7/8 - 13/20) + 9/10 = 1 21/40 + 9/10 = 1 57/40 = 2 17/40

5) (7/18 - 1/12) + 5/6 = 17/36 + 5/6 = 47/36 = 1 11/36

6) (3/4 - 8/15) + 17/20 = 1 17/60 + 17/20 = 1 68/60 = 2 8/60

Answer 2

1) ( 7/15-1/6)+2/5=9/30+2/5=21/30
2) (3/8-1/9)+25+36=35/72+25/36=85/72=13/72