One-sixth, i.e., 489c and 98,. The.

24 D 60 + 60=120 16+24=40 44/ 5 192 72 E 60+ 60=120 12+18=30 44/s 144 24 24 C 60+60=120 14+10*/, =24*/j 8 196 76 20+2x28 D 60+ 60=120 9+221/j=311/, 216.