(-5)-(-1/2)+7 -7/3 1/3+(-6/5)-(-1/2)-2/3
问题描述:
(-5)-(-1/2)+7 -7/3 1/3+(-6/5)-(-1/2)-2/3
(-1/3)-15+(2/3) (-12)-(-6/5)+(-8)-7/10
33.1-(-22.9)+(-10.5) (-8)-(-15)+(-9)-(-12)
答
1、=-5+1/2+7-7/3=2+3/6-14/6=2-11/6=1/6
2、=1/3-6/5+1/2-2/3=(10-36+15-10)/30=-21/30=-7/10
3、=-15+1/3=-44.3
4、=-20+6/5-7/10=-20+1/2=-39/2
5、=33.1+22.9-10.5=45.5
6、=-8+15-9+12=10