Question

Найдите значение числового выражения.

1) 2, 17 + (3, 2 + 0, 17)

2) (1/4 + 1/6)(2/5 - 1/2)

3) 9, 49 - (1, 5 + 0, 1)

5) 0, 94 - (- 1, 6 - 98)

4) (1 1/3 + 4 1/2) / (5/6)

6) (3 1/4 + 2 1/3) / (11 1/6)

Answer 1

Ответ:

1) 2, 17 + (3, 2 + 0, 17) = 2, 17 + 3, 37 = 5, 54

2) (1/4 + 1/6)(2/5 - 1/2) = (3/12 + 2/12)(2/5 - 6/12) = (5/12)(-2/12) = -10/144 = -5/72

3) 9, 49 - (1, 5 + 0, 1) = 9, 49 - 1, 6 = 7, 89

5) 0, 94 - (- 1, 6 - 98) = 0, 94 - (- 96, 4) = 0, 94 + 96, 4 = 97, 34

4) (1 1/3 + 4 1/2) / (5/6) = (4/3 + 9/2) / (5/6) = (8/6 + 27/6) / (5/6) = 35/6 / 5/6 = 35/5 = 7

6) (3 1/4 + 2 1/3) / (11 1/6) = (13/4 + 7/3) / (67/6) = (39/12 + 28/12) / (67/6) = 67/12 / 67/6 = 1/2