Question

Помагите пожалуйста​

Answer 1

Ответ:

1) (7/15 - 1/6) + 2/5 = 1) 7/15 - 1/6 = 14/30 - 5/30 = 9/30 2) 9/30+ 2/5 = 9/30 + 12/30= 21/30= 7/10

2) (7/18-1/12) + 5/6= 1) 7/18 - 1/12 =14/36 - 3/36= 11/36 2) 11/36 + 5/6 = 11/36 + 30/36 = 41/36= 1 5/36