建筑工地运来7/8吨黄沙,用去1/4吨后,有用去余下的3/5,有用去多少吨?
问题描述:
建筑工地运来7/8吨黄沙,用去1/4吨后,有用去余下的3/5,有用去多少吨?
答
lileiandgu,你好:
(7/8-1/4)×3/5
=5/8×3/5
=3/8(吨)
答
(7/8-1/4)*3/5
=5/8*3/5
=3/8(吨