(-8/5)+15/7+(-12/5)+(-22/7)+7/3 计算

问题描述:

(-8/5)+15/7+(-12/5)+(-22/7)+7/3 计算

=(-8/5)=(-12/5)+15/7+(-22/7)+7/3
=-4-1+7/3
=-5+7/3
=-8/3