Explicație pas cu pas:
a) 1/2:3 = 1/2 * 1/3 = 1/6 = 0,1(6)
1/2*1/3=1/6=0,1(6)
1/2:3=1/2*1/3
b) 2/3:2/5=2/3*5/2=10/6=1,(6)
2/9:1/3=2/9*3/1=2/3*1/1=2/3=0,(6)
2/3:2/5>2/9:1/3
c)5/7:5/1=5/7*1/5=1/7*1/1=1/7=0,142857142857
1/5:7/15=1/5*15/7=1/3*5/7=5/21=0,238095238095
5/7:5/1 < 1/5:7/15
d)5/8:1/8=5/8*8/1=5/1*1/1=5/1=5
2/9*45/1=2/1*5/1=10/1=10
5/8:1/8<2/9*45
