Автор - vwrbwtj

Решите, пожалуйста:
1) 4 1/4 - 2/3 =
2) 3 2/15 - 1 3/10 =
3) 2/5 : 1/3 =
4) 1 : 5/8 =
5) 3/7 * 1 1/2 =
6) 1 1/3 * 1 1/3 =
7) 7 1/2 * 3 1/3
8) 3/7 * 1 1/2 =
9) 1 1/3 * 1 1/3 =
10) 7 1/7 * 3 1/3 =
11) 3:(1/3 - 1/6) =
12) 3/8 : 3/8 : 6 =

/ - дробь

Ответ

Автор - tatsach

Ответ:

Пошаговое объяснение:

1) 4 1/4 - 2/3 =4 3/12-8/12=3 7/12

2) 3 2/15 - 1 3/10 =3 4/30-1 9/30=1 5/6

3) 2/5 : 1/3 =2/5*3=6/5=1 1/5

4) 1 : 5/8 =1*8/5=8/5=1 3/5

5) 3/7 * 1 1/2 =3/7*3/2=9/14

6) 1 1/3 * 1 1/3 =4/3*4/3=16/9=1 7/9

7) 7 1/2 * 3 1/3=15/2*10/3=25

8) 3/7 * 1 1/2 =3/7*3/2=9/14

9) 1 1/3 * 1 1/3 =  4/3*4/3=16/9=1 7/9

10) 7 1/7 * 3 1/3 =50/7*10/3=500/21=23 17/21

11) 3:(1/3 - 1/6) =3:(2/6-1/6)=3*6=18

12) 3/8 : 3/8 : 6 ==3/8*8/3*1/6=1/6

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