1/25×5/6=1/5×1/6=1/30(se simplifica 5 cu 25)
16/9×1/24=2/9×1/3=2/27
5/17×8/13=40/221
2/21×7/4=1/3×1/2=1/6
32/63×9/5=32/7×1/5=32/35
66/24×3/55=6/8×1/5=3/4×1/5=3/20
13/72×40/39=1/9×5/3=5/27
1 (2/7)×1(13/15)=2/7×13/15=26/105
5 (5/8)×1 (7/25)=25/8×7/25=1/8×7=7/8
3 (3/13)×2 (11/14)=9/13×11/7=99/91
Sper ca ai inteles!