Сроооооооооооочно!!!!!!!!!!!!!!!!!!!!!!!!!
1- 5/6, 5/6, 3/2
2- 3/16<5/24; 13/330<9/220</p>
3 a7/8-5/6=21/24-20/24=1/24
b13/16+7/24=39/48+14/48=53/48
c- 19/20-5/12+9/5=57/60-25/60+108/60=140/60