Răspuns
Explicație pas cu pas:
a) 2/12=1/6; pt ca 1x12=6x2; 3/12=1/4; 4/12=1/3; 6/12=1/2;
b) 2/24=1/12; 4/24=1/6; 3/24=1/8, 6/24=1/4; 12/24=1/2
c) 2/60=1/30; 3/60=1/20; 6/60=1/10; 4/60=1/15; 5/60=1/12; 12/60=1/5; 15/60=1/4; 30/60=1/2
d) 6/3=2/1; 3/3=1/1
e) 2/36=1/18; 3/36=1/12; 4/36=1/9; 6/36=1/6; 12/36=1/3; 18/36=1/2