4 5/12-3 7/18= 1 1/36 9,25=9 1/4=37/4 1 1/36:37/4=1/9
1/9+5/6=17/18
4/10+1/8+3/4=1 11/40 1 11/40*2/3=17/20=8,5/10=0,85
4 5/12-3 7/18= 1 1/36 9,25=9 1/4=37/4 1 1/36:37/4=1/9
1/9+5/6=17/18
4/10+1/8+3/4=1 11/40 1 11/40*2/3=17/20=8,5/10=0,85