(-3/4)*(8-1又1/3-0.04+3又1/5)

问题描述:

(-3/4)*(8-1又1/3-0.04+3又1/5)

=(-3/4)(8-4/3-1/25+16/5)=-6+1+(-3/4)(-1/25+16/5)=-5-(3/4)×(79/25)=-5-237/100=-5.237