( 2целих 4/15 - 1целая 5/12) : 3целих 2/5 + 6целих 4/9 : 2 = ?

(34/15-17/12):17/5+58/9:2=51/60:17/5+58/9:2=51/60*5/17+58/2*1/2=3/12+29/2=3/12+174/12=177/12