Question

7/10+9/14-3/35
4/9+5/6-3/4
6/7-1/4+5/14
11/12-1/9+1/4
даю 14б​ СРОЧНОООООООО

Answer 1

1) 7/10 + 9/14 - 3/35 = 1 9/35.

7/10 + 9/14 = 49/70 + 45/70 = 94/70;

94/70 - 3/35 = 94/70 - 6/70 = 88/70 = 44/35 = 1 9/35;

2) 4/9 + 5/6 - 3/4 = 19/36.

4/9 + 5/6 = 8/18 + 15/18 = 23/18;

23/18 - 3/4 = 46/36 - 27/36 = 19/36;

3) 6/7 - 1/4 + 5/14 = 27/28.

6/7 + 5/14 = 12/14 + 5/14 = 17/14;

17/14 - 1/4 = 34/28 - 7/28 = 27/28;

4) 11/12 - 1/9 + 1/4 = 1 1/18.

11/12 + 1/4 = 11/12 + 3/12 = 14/12 = 7/6;

7/6 - 1/9 = 21/18 - 2/18 = 19/18 = 1 1/18.

Думаю правильно