1.... -27/20*(-5/9)-5/24*(-22/5) =
2... -36/60*(-5/18)-(-21/56)*(-1/3)
3... 15*(1+1/3-1/5)
4... 72*(19/24-7/12+3/8)
5... 72/73*34/65+72/73*39/65
2... -36/60*(-5/18)-(-21/56)*(-1/3)
3... 15*(1+1/3-1/5)
4... 72*(19/24-7/12+3/8)
5... 72/73*34/65+72/73*39/65
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Ответ:
Пошаговое объяснение:
-27/20 * (-5/9) - 5/24 * (-22/5) = 3/4 + 11/12 = 1 2/3
-36/60 * (-5/18) - (-21/56) * (-1/3) = 1/6 - 1/8 = 1/24
15 * (1 + 1/3 - 1/5) = 15 * 1 2/15 = 17
72 * (19/24 - 7/12 +3/8) = 72 * 7/12 = 42
72/73 * 34/65 + 72/73 * 39/65 = 72/73 * (34/65 + 39/65) = 72/73 * 73/65 = 72/65 = 1 7/65