80:16= (80+0):16=80:16= 5
57:19= (50+7):19=57:19=3
560:140= (560+0):140=560:140=4
780:19= (780+0):19=780:19= 41
80:16= (80+0):16=80:16= 5
57:19= (50+7):19=57:19=3
560:140= (560+0):140=560:140=4
780:19= (780+0):19=780:19= 41