31/80+(3/16+39/80) = 2/45+(3/45+7/9) = (3/7+5/14)+1/14 = 7/15+(2/15+1/5) = 3/16+(1/16+5/8) = (1/13+1/14)+12/13 = Help It is necessary to decide to paint please! I will give 15 balls

342
31/80+(3/16+39/80)=31/80+(15/80+39/80)=31/80+54/80=85/80=1 5/80=1 1/16 2/45+(3/45+7/9)=2/45+(3/45+35/45)=2/45+38/45=4045=8/9 (3/7+5/14)+1/14=(6/14+5/14)+1/14=11/14+1/14=12/14=6/7 7/15+(2/15+1/5)=7/15+(2/15+3/15)=7/15+5/15=12/15=4/5 3/16+(1/16+5/8)=3/16+(1/16+10/16)=3/16+11/16=14/16=7/8 (1/13+1/14)+12/13=(14/182+13/182)+ 1) 31/80 +54/80 85/80=17/16
1
Answer add