(-5/8)/1/16+0.25*(-5)*(-64)

问题描述:

(-5/8)/1/16+0.25*(-5)*(-64)

(-5/8)/1/16+0.25*(-5)*(-64)
=(-5/8)*(16/1)+(-1)*(-1)*0.25*5*64
=-5*2+0.25*5*(4*16)
=-10+0.25*4*5*16
=-10+1*80
=-10+80
=70