Question

Вычислите: (-7)-(-3.6):(1.2)(6 3/7):(-9)+4 1/3(-7/24)*(1 1/7)*3(-2.7):(-1 4/5)*(1 5/9)Всё в квадратных скобках!

Answer 1

3-3.6:1.2=0
6 3/7:9+4 1/3=45/7 x 1/9 + 4 1/3= 5/7 +4 1/3=22/21=1 1/21\
7/24 x 1 1/7 x 3=1
2.7 : 1 4/5 x 1 5/9= 27/10 x 5/9 x 14/9=7/3=2 1/3

Answer 2

Давайте разберемся по частям:

1) (-7) - (-3.6) = -7 + 3.6 = -3.4

2) (1.2)(6+3/7) = 1.2 * (6 + 3/7) = 1.2 * (42/7 + 3/7) = 1.2 * (45/7) = 1.2 * 45 / 7 = 54 / 7 = 7.714285714285714

3) (-9) + 4 + 1/3 = -9 + 4 + 1/3 = -5 + 1/3 = -15/3 + 1/3 = -14/3

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