Question

дз по матем помогите ​

Answer 1

Ответ:

Пошаговое объяснение:

3) 4 2/3 - 3 5/9 + 7/12 : 3/8= 14/3 - 32/9 + 7/12 * 8/3= 42/9 - 32/9 + 14/9=

= 24/9= 8/3= 2 2/3

4) 7/8 * 4/5 + (9-7 2/5) : 4/15= 7/10 + 1 3/5 : 4/15= 7/10+ 8/5 * 15/4=

= 7/10 + 6 = 6 7/10

Answer 2

3)

4, 2/3 - 3, 5/9 + 7/12 : 3/8 =
= 4, 6/9 - 3, 5/9 + 14/9 =
= 1, 1/9 + 14/9 = 1, 15/9 = 2, 6/9 = 2, 2/3
Ответ: 2, 2/3
4)

7/8 • 4/5 + (9 - 7, 2/5) : 4/15 =
= 7/10 + (8, 5/5 - 7, 2/5) : 4/15 =
= 7/10 + 1, 3/5 : 4/15 = 7/10 + 8/5 : 4/15 =
= 7/10 + 6 = 6, 7/10
Ответ: 6, 7/10