对
因为
(64*75*81)/(32*25*27)
=64*75*81*(1/32)*(1/25)*(1/27)
由乘法交换律
=[64*(1/32)]*[75*(1/25)]*[81*(1/27)]
=(64/32)*(75/25)*(81/27)
对
因为
(64*75*81)/(32*25*27)
=64*75*81*(1/32)*(1/25)*(1/27)
由乘法交换律
=[64*(1/32)]*[75*(1/25)]*[81*(1/27)]
=(64/32)*(75/25)*(81/27)