计算题。 20
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36*(2/3+1/4-1/2)
=36*2/3+36*1/4-36*1/2
=24+9-18
=15
12/(1/3+1/4)
=12*3+12*4
=36+48
=84
4.8*(1/2)*0.1
=2.4*0.1
=0.24
0.4*4*1/8
=0.4*(1/2)
=0.2
7.8*(5/26)*0.6
=0.3*5*0.6
=0.3*3
=0.9
(12/25)/0.6/(4/5)
=(12/25)*(5/4)/0.6
=(3/5)*(10/6)
=1
2/5*(25%)
=2/5*(25/100)
=1/10
0.36/(9/16)
=(36/100)*(16/9)
=0.64
1.5*0.2*(3/5)
=0.3*0.2*3
=0.06*3
=0.18
=36*2/3+36*1/4-36*1/2
=24+9-18
=15
12/(1/3+1/4)
=12*3+12*4
=36+48
=84
4.8*(1/2)*0.1
=2.4*0.1
=0.24
0.4*4*1/8
=0.4*(1/2)
=0.2
7.8*(5/26)*0.6
=0.3*5*0.6
=0.3*3
=0.9
(12/25)/0.6/(4/5)
=(12/25)*(5/4)/0.6
=(3/5)*(10/6)
=1
2/5*(25%)
=2/5*(25/100)
=1/10
0.36/(9/16)
=(36/100)*(16/9)
=0.64
1.5*0.2*(3/5)
=0.3*0.2*3
=0.06*3
=0.18
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