有理数简便运算帮我哦
问题描述:
有理数简便运算帮我哦
25*3/4-(-25)*1/3-25*1/4
答
25*3/4-(-25)*1/3-25*1/4
=25*3/4+25*1/3-25*1/4
=25*(3/4-1/4+1/3)
=25*5/6
=125/6