Question

Выполните действия 13 2/11+ 4 5/22,3/39+2/13,6-2/7,2 4/7-5/7​

Answer 1

Ответ:

Пошаговое объяснение:

13 2/11+ 4 5/22 => НОК(11;22)  = 22 =>13 4/22 + 4 5/22 = 17 9/22.

3/39+2/13 =>  НОК(39;13) = 39 => 3/39+6/39 = 9/39 = 3/13.

6-2/7 = 5+1 -2/7 = 5+7/7 - 2/7 = 5  (7-2)/7 = 5 5/7.

2 4/7-5/7​ = 2 (4-5)/7 = 1 (7+4-5)/7 = 1 6/7.