简便运算100/(125/8)

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简便运算100/(125/8)简便运算100/(125/8)简便运算100/(125/8)100/(125/8)=100*8/125=4*25*8/5*25=32/5100/125/8=100x8/1

简便运算100/(125/8)
简便运算100/(125/8)

简便运算100/(125/8)
100/(125/8)
=100*8/125
=4*25*8/5*25
=32/5

100/ 125/8
=100x8/125
=(100x8x8)/(125x8)
=6400/1000
=6.4

100/(125/8)
=100×(8/125)
=800/125
=6.4

上下同时乘以64.式子变为了64*100/1000.这就可以开始约了.答案等于6.4.
关键在于125*8=1000