解:2又2分之1=5/2
19又9分之7=178/9
1.25=5/4
0.32=8/25
所以:原式=5/2x178/9x5/4x8/25
=(5x178x5x8)/(2x9x4x25)
=178/9
= 19(7/9)
即答案为:19又9分之7
(2+1/2)*(19+7/9)*1.25*0.32
=5/2*178/9*5/4*8/25
=5*178/9*5*1/25
=178/9