4/5×（1/4+3/8）÷3/47O6q,t9F.A0J0Y6h
算式：提示.?*N8k6t3x1J0N7O6q,t9F.A0J0Y6h
=4H+^5B-y8u'S+~9V4J*X7O6q,t9F.A0J0Y6h