Question

1015 выполните действия​

Answer 1

Ответ:

а) 2/11 + 5/11 = (2+5)/11 = 7/11;

б) 6/15 - 4/15 = (6-4)/15 = 2/15;

в) 3/9 + 2/9 - 4/9 = (3+2-4)/9 = 1/9;

г) 12/19 - 1/19 - 5/19 = (12-1-5)/19 = 6/19.