3又2分之1+360*25%+0.25*36.5 （7.25*40%+2.75*5分之2）/20%

3又2分之1+360*25%+0.25*36.5
=3.5+360*1/4+9.125
=3.5+90+9.125
=102.625
(7.25*40%+2.75*5分之2）/20%
=[(2/5)*(29/4+11/4)]*5
=2*40/4
=20
【1.9+19%*（4.8-3又5分之4）】/（2又10分之9)
=(0.19*10+0.19)*10/29
=0.19*11*10/29
=20.9/29
=209/290