71又16分之15乘以(-8)

问题描述:

71又16分之15乘以(-8)

原式
=(70+31/16)x(-8)
=-(70x8+31/16x8)
=-(560+31/2)
=-575.5

结果是-575.5
求采纳!!!

71又15/16×(-8)
=71×(-8)+15/16×(-8)
=-568-7又1/2
=-575又1/2