(-12)*(-一有三分之四) 5/6*(-0.2) 12.*(-1.35)*(-40)*2

问题描述:

(-12)*(-一有三分之四) 5/6*(-0.2) 12.*(-1.35)*(-40)*2
-1-(-11/2)*(-4/11) (-5)/(-15)/(-3)

(-12)*(-一又4分之3)
=12×7/4
=21
5/6*(-0.2)
=-5/6×1/5
=-1/6
12.*(-1.35)*(-40)*2
=-13.2×1600
=-25920
-1-(-11/2)*(-4/11)
=-1-11/2×4/11
=-1-2
=-3
(-5)/(-15)/(-3)
=-1/3÷3
=-1/9