2 целых 7/9 - 1 целая 5/12 ?

Question

2 целых 7/9 - 1 целая 5/12 ?

Answer 1

2 целых 7/9 - 1 целая 5/12

2 целых 7/9 = 25/9

1 целая 5/12 = 17/12

Теперь получаем:

25/9 - 17/12 = (4*25 - 3*17) / 36 = (100-51)/36= 49/36 = 1 целая 13/36

 

Ответ: 49/36 = 1 целая 13/36

Answer 2

25/9 - 17/12 = 4х25 - 3х17 / 36 = 100 - 51/ 36 = 49/36 = 1 целая 13/36