(-36)x(-9/5)x5/6x(-3)
问题描述:
(-36)x(-9/5)x5/6x(-3)
怎么写?
还有
(1/6-1/5+2/15+1/30)x30
答
(-36)x(-9/5)x5/6x(-3)
=-18
就约分啊...
(1/6-1/5+2/15+1/30)x30
=5-6+4+1
=4