能簡算的要簡算1.25*0.25*60 3.6*4.7+6.3*3又5分之3-3.6

能簡算的要簡算1.25*0.25*60 3.6*4.7+6.3*3又5分之3-3.6

1.25×0.25×60
=5/4×1/4×60=75/4
原式=3.6×4.7+6.3×3.6-3.6
=3.6(4.7+6.3-1)
=36