(-0.25+7/4)÷【0.5-(0.75)*(4/3-4)】
问题描述:
(-0.25+7/4)÷【0.5-(0.75)*(4/3-4)】
答
原式=6/4÷(1/2-3/4*-8/3)
=6/4÷(5/2)
=6/4*2/5
=6/10
=0.6