1/24÷5/6+7/8-5/12= 1/24×6/5+21/24-10/24= 1/4×1/5+11/24=7/15
1/24÷5/6+7/8-5/12＝1/20+7/8-5/12＝37/40-5/12＝17/40
＝1/20+7/8-5/12＝111/120-50/120＝61/120
