Question

Помогите сделать математику пжл

Answer 1

0,8+3/7= 8/10+3/7=56/70+30\70=86/70=1 16/70=1 8/35

3 1/3- 2,5 = 10/3 - 25/10 = 100/30 - 75/30 = 25/30= 5/6

4,9 +1 1/9 = 49/10 +10/9 = 441/90 + 100/90 = 541/90 = 6 1/90

26 1/11 - 5,7= 287/11 - 57/10 = 2870/110 - 627/110= 2243/110 = 20 39/110

Answer 2

1)8/10+3/7=56/70-30/70=26/70
2)3 1/3-2 5/10=3 10/30-2 15/30=2 40/30- 2 15/30=25/30