(19/96+1919/96966+191919/969696)÷19191919/96969696
问题描述:
(19/96+1919/96966+191919/969696)÷19191919/96969696
今天必须交
答
原式即:
=(1+101/101+10101/10101)*(19/96)÷[(1010101/1010101)*19/96]
=(1+1+1)*(19/96)÷[1*19/96]
=3