(-0.75)除5/4除(-0.3)=多少?如题
问题描述:
(-0.75)除5/4除(-0.3)=多少?
如题
答
0.75=3/4
0.3=3/10
(-0.75)除5/4除(-0.3)=-3/4 ÷5/4 ÷(-3/10)
=-3/4*4/5*(-10/3)=2