33:121=(33/11):(121/11)
=3:11
5:0.45=(5*100):(0.45*100)
=500:45
=(500/5):(45/5)
=100:9
1/7:1/3=(1/7×21):(1/3×21)
=3:7
5/8:1/4=(5/8×8):(1/4×8)
=5:2
33:121=(33/11):(121/11)
=3:11
5:0.45=(5*100):(0.45*100)
=500:45
=(500/5):(45/5)
=100:9
1/7:1/3=(1/7×21):(1/3×21)
=3:7
5/8:1/4=(5/8×8):(1/4×8)
=5:2