Ответ:
Пошаговое объяснение
(2,5-2 1/3)×(-5 1/7)+1 1/3:(-5,6)= -1 2/21
1) 2,5 - 2 1/3 = 2 1/2 - 2 1/3 = 2 3/6 - 2 2/6 = 1/6
2) 1/6 *(5 1/7) = 1/6 * (-36/7) = -6/7
3) 1 1/3 :(-5,6) = 4/3 : (-28/5) = 4/3 * (-5/28) = -5/21
4) -6/7 + (-5/21) = -18/21 - 5/21 = -23/21 = -1 2/21
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Answers & Comments
Ответ:
Пошаговое объяснение
(2,5-2 1/3)×(-5 1/7)+1 1/3:(-5,6)= -1 2/21
1) 2,5 - 2 1/3 = 2 1/2 - 2 1/3 = 2 3/6 - 2 2/6 = 1/6
2) 1/6 *(5 1/7) = 1/6 * (-36/7) = -6/7
3) 1 1/3 :(-5,6) = 4/3 : (-28/5) = 4/3 * (-5/28) = -5/21
4) -6/7 + (-5/21) = -18/21 - 5/21 = -23/21 = -1 2/21