求-3.76+(-2又七分之三)-(+13.24)-六又七分之四+1又八分之五-0.625

问题描述:

求-3.76+(-2又七分之三)-(+13.24)-六又七分之四+1又八分之五-0.625

=-(3.76+13.24)-(2+3/7+6+4/7)+(1+5/8-0.625)
=-17-9+1
=-25