9又5分之2-(7分之3+0.4)简算
问题描述:
9又5分之2-(7分之3+0.4)简算
答
9又5分之2-(7分之3+0.4)
=47/5-(3/7+2/5)
=47/5-3/7-2/5
=47/5-2/5-3/7
=45/5-3/7
=9-3/7
=60/7
希望您采纳,谢谢
答
等于9.4-0.4-3/7=60/7
答
9又5分之2-(7分之3+0.4)
=47/5-3/7-2/5
=(47/5-2/5)-3/7
=45/5-3/7
=9-3/7
=8又4/7
不懂的可追问,满意请采纳~