48:20= 
56:10=
32:20=
61:7=
84:9=
70:8=
14:30=
8:10=
9:12=

48:20=2,456:10=5,632:20=1,661:7=8 5/784:9=9 3/9=9 1/370:8=8 6/8=8 3/414:30=7/158:10=0,89:12=3/4

48:20= 2.456:10= 5.632:20= 1.661:7=8 5/7(8.71)84:9= 9 1/3 (9.(3))70:8=8.7514:30=7/15(0.4(6))8/10= 0.89:12= 0.75