Предмет: Математика, автор: sanarakadir

помогите
1) 15-7 2/3
2)14 5/7+11
3)8*(-3 1/4)
4)3 3/4:5/8

Ответы

Автор ответа: svetazuna

0

1)

15 - 7 2/3 = 14 3/3 - 7 2/3 = 7 1/3,

2)

14 5/7 + 11 = 25 5/7,

3)

8 * (-3 1/4) = 8 * (-13/4) = -2 * 13 = -26,

4)

3 3/4 : 5/8 = 15/4 * 8/5 = 3 * 2 = 6

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