几道数学题,懒得算(-1.2)x(-3)(-1又1/3)x(4又1/2)15x(-2/5)(-17/8)x0

问题描述:

几道数学题,懒得算
(-1.2)x(-3)
(-1又1/3)x(4又1/2)
15x(-2/5)
(-17/8)x0