17/24+4/12=17/24+8/24=25/24
17/24+11/18=51/72+44/72=95/72
17/24+13/10=85/120+156/120=241/120
17/24+5/36=51/72+10/72=61/72
9)
1/4+4/5+5/12+3/20=
15/60+12/60+9/60=
36/60=18/30=9/15
9/8+5/12+1/36+7/24=
81/72+30/72+2/72+21/72=
134/72=67/36
5/8+3/10+4/5+1/16=
50/80+24/80+64/60+5/80=
143/80