Ответ:
Пошаговое объяснение:
-2 * 4/9 : ( - 3 5/9) + ( - 1 2/15 - 7/12) : 3 13/30 = - 1/4
1) - 2 * 4/9 = - 8/9
2) - 8/9 : (- 3 5/9) = - 8/9 : ( - 32/9) = - 8/9 * (- 9/32) = 1/4
3) - 1 2/15 - 7/12 = - 1 8/60 - 35/60 = - 68/60 - 35/60 = -103/60
4) - 103/60 : 3 13/30 = - 103/60 : 103/30 = -103/60 * 30/103 = - 1/2
5) 1/4 + (-1/2) = 1/4 - 2/4 = - 1/4
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Answers & Comments
Ответ:
Пошаговое объяснение:
Ответ:
Пошаговое объяснение:
-2 * 4/9 : ( - 3 5/9) + ( - 1 2/15 - 7/12) : 3 13/30 = - 1/4
1) - 2 * 4/9 = - 8/9
2) - 8/9 : (- 3 5/9) = - 8/9 : ( - 32/9) = - 8/9 * (- 9/32) = 1/4
3) - 1 2/15 - 7/12 = - 1 8/60 - 35/60 = - 68/60 - 35/60 = -103/60
4) - 103/60 : 3 13/30 = - 103/60 : 103/30 = -103/60 * 30/103 = - 1/2
5) 1/4 + (-1/2) = 1/4 - 2/4 = - 1/4