5 7/15-(7 1/2-(4 29/60 (2 1/5-+ 5/6)))=? 6 13/24-((14 7/24-10 31/48)-(2 3/4-1 7/12))-1 1/6=???
1)82/15-(85/12-(269/60-(11/5-11/6)=82/15-(85/12-291/60)=82/15-134/60=194/60=3 7/30