Question

doar 1 și 3 va rog mult repede​

Answer 1

3/5*4/7=3*4/5*7=12/35
11/2*5/4=11*5/2*4=55/8

Answer 2

Răspuns:

3/5 *4/7 = 12/35

2/7 *3/11 =6/77

11/2*5/4=55/8

6/5*5/8 =6/8

10/15*3/8 =2/3/3/8 =2/8

12/13*26/18 =2/1*2/3 =4/3

15/8*16/25 =3/1*2/5=6/5

12/11*22/36 =2/1*2/6=4/6=2/3

36/100*10/9 =4/10*1=4/10=2/5

18/75*5/9 =2/15*1=2/15

4/9*12/64=1/3*4/16=1/3*1/4=1/12

18/7*21/27 =2/1*3/3=2/1

45/24*12/15=3/2*1=3/2

13/35*20/52=4/7*4/4=4/7

A doua coloana:

(1/2)^2 =1/2 *1/2 =1/4

(2/3)^2 =2/3 *2/3 =4/9

(3/5)^2 =3/5 * 3/5 = 9/25

(5/7)^2 =5/7*5/7 =25/49

(2/7)^2 =2/7*2/7 =4/49

(7/9)^2 =7/9*7/9 =49/81

(3/10)^2 =3/10*3/10 =9/100

(5/8)^2 =5/8*5/8 =25/64

(2/3)^3 =2/3*2/3*2/3 =8/27

(3/4)^3 =3^3/4^3 =27/64

(3/5)^3 =3^3/5^3 =27/125

(3/10)^3 =3^3/10^3 =27/1000

(2/3)^4 =2^4/3^4 =16/81

(2/3)^5 =2^5/3^5 =32/243

Explicație pas cu pas: