列式计算:1.-2与-3的倒数的和 2.-3与-2/3的差

问题描述:

列式计算:1.-2与-3的倒数的和 2.-3与-2/3的差

(1)
-2+1/(-3)
=-2-1/3
=-7/3
(2)
-3-(-2/3)
=-3+2/3
=-7/3