Вычислите 7/9+5/6-2 7/12

Question

Вычислите 7/9+5/6-2 7/12

Answer 1

1) 5/6 - 2 7/12 = 10/12 - 2 7/12 = 10/12- 1 19/12 = - 1 9/12 = - 1 3/4 
2) 7/9 - 1 3/4 = 7/9 - 7/4 = 28/36 - 63/36 = - 35/36