Question

E a 3 a oara cand pun exercitiile astea... Va rog 9,10 si 11!!!!dau coroana!!!!

Answer 1

9.

a. 19/130 : 38/260 =19/130 * 260/ 38= 65/66

b. = 17 *6:( 31*6+1)= 6/11

c. =14*2:7=4

d. = 23:6*12:23=2

e =19/5*17/19=17/5

f= 4/5*3/5*25/12=1

g= 125/4*6/125=6/4=3/2=1.5

h= 62/3*4/62=4/3

10

a. =17/3*4/21*7/34=2/9

b. =9/13:(5/26*36/7)=9/13:(5*36/(26*7)) =9/13*91/90=7/10

c. 7/2*3/7:(6*19/12)=7/2*3/7*12/(6*19)=3/19

11

A. 121: 22=11/2 =5 r 1

B. =12:32*20:72=5/48 = 0 r 5

C. = 19*5:19=5 r 0