{-3/4}*{-8+2/3-4/3}
=3/4*8-3/4*2/3+3/4*4/3
=6-1/2+1
=13/2
{-1.2}*{-5/8}+{-24}*1/12
=3/4-2
=-5/4首先谢谢你 过程能再详细点吗很详细了，采纳吧额 能告诉我第二题是怎么算出3/4-2的？回答出我就采纳乘法不会吗