Question

Toate va rog..... îmi trebuie urgent ​

Answer 1

Răspuns:

Explicație pas cu pas:

10.

3/10 = 0,3

143/100 = 1,43

2/5 = 0,4

3/2 = 1,5

7/3 = 2,(3)

8/90 = 0,0(8)

11.

0,3 = 3/10

2,(6) = (26 - 2)/9 = 24/9 = 8/3

15,763 = 15763/1000

0,0(8) = 8/90 = 4/45

4,27(5) = (4275 - 427)/900 = 3848/900 = 962/225

12.

7/10 + 2/10 = 9/10

3/4 - 1/4 = 2/4 = 1/2

a/(a - 1) - 1/(a - 1) = (a - 1)/(a - 1) = 1

7/8 + 1/4 = 7/8 + 2/8 = 9/8

1/3 + 1/5 = 5/15 + 3/15 = 8/15

5/12 + 1/15 = 25/60 + 4/60 = 29/60

10/9*27/20 = 3/2

2/13*39/5 = 6/5

8/25 : 12/35 = 8/25*35/12 = 14/15

1/2 : 2 = 1/2*1/2 = 1/4

(1/7)^2 = 1/49

2 + 1,2 = 3,2

23,4 - 4,56 = 18,84

6,8*100 = 680

Succes la ce a ramas!