Ответ:
19/21
Пошаговое объяснение:
(1 16/21- 3 4/9)÷(-1 11/42)+1 5/7÷(-4)= 19/21
1) 1 16/21- 3 4/9= = - 1 43/63
2) -1 43/63÷(-1 11/42) = 1 1/3
3) 1 5/7÷(-4)= -3/7
4) 1 1/3+(-3/7)= 19/21
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Verified answer
Ответ:
19/21
Пошаговое объяснение:
(1 16/21- 3 4/9)÷(-1 11/42)+1 5/7÷(-4)= 19/21
1) 1 16/21- 3 4/9= = - 1 43/63
2) -1 43/63÷(-1 11/42) = 1 1/3
3) 1 5/7÷(-4)= -3/7
4) 1 1/3+(-3/7)= 19/21
Ответ : 19/21