Question

Помогите даю 15 баллов

Answer 1

1)7,5:3/8=75/10*8/3=20
2)4 2/3*0,6=14/0*6/10=2,8
3)20+2,8=22,8
4)22,8:1,9=12
5)2,5:1 3/7=25/10*7/10=1,75
6)1,75+5,25=7
7)7:2 1/3=7*3/7=3
8)12:3=4
9)2 2/3*0,15:0<6=8/3*15/100*10/6=2/3
10)0,5-1/12=1/2-1/12=6/12-1/12=5/12
11)5/12*0,8=5/12*8/10=1/3
12)2/3:1/3=2
13)4+2=6

Answer 2

1)7,5:3/8= 7 1/2 *8/3= 15/2* 8/3 = 5/1*4/1=20

2)4 2/3 * 0,6=14/3 * 6/10 = 7/1*2/5 = 14/5=2,8

3)20+2,8=22,8

4)2,5:1 3/7 = 5/2 : 10/7 = 5/2*7/10 =1/2*7/2= 7/4 = 1,75

5)1,75+5,25= 7

6)0,5-1/12 = 1/2 -1/12 = 6/12 - 1/12=5/12

7)22,8:1,9=12

8)7:2 1/3 = 7: 7/3 = 7*3/7 = 3

9)2 2/3*0,15 = 8/3 * 15/100 = 2/1*5/25 = 2*1/5= 2/5

10)2/5 : 6/10 = 2/5*10/6 = 1/1*2/3 = 2/3

11)5/12 * 8/10 = 1/3*2/2 = 1/3

12)12:3=4

13)2/3:1/3=2/3*3=2

14)4+2=6