Question

Completati fractiile:
a)7/12=35/?
b)?/18=60/108

Ordonati descrescator fraciile:
2/3 , 5/12 , 5/8 , 3/4 , 5/6

Answer 1

a)x=60 b)x=10 5/12 ,5,8 ,3/4 ,2/3 ,5/6

Answer 2

a) 7 / 12 = 35 / 60 ;
b) 10 / 18 = 60 /108 ;

12=2²*3
8  = 2³      => [12;8] = 24  
amplificam fractiile date ca sa le aducam la numitor comun ...
16*24 ; 10/24 ; 15/24 ; 18/24 ; 20/24  
acum le ordonam descrescator: 
20/24=5/6; 18/24=3/4; 16/24=2/3; 15/24=5/8; 10/24=5/12;