Răspuns:
a)21/63=3/9=0.(3)
b)300/50=30/5=6
c)63/54=7/6=1.1(6)
d)45/90=1/2=0.5
e)35/49=5/7=0.71
f)1.5/2=(15/10)/2=15/10*1/2=15/20=0.75
1.5=15/10
g)(1/4)/(1/2)=1/4*2/1=2/4=1/2=0.5
h)0.(3)=3/9
1.(6)=(16-1)/9=15/9
0.(3)/1.(6)=(3/9)/(15/9)=3/9*9/15=3/15=1/5=0.2
i)1.(16)=(116-1)/99=115/99
0.1(6)=(16-1)/90=15/90
1.(16)/0.1(6)=(115/99)/(15/90)=115/99*90/15=6.(96)
Explicație pas cu pas: