0.81循环的分数是怎么算的
问题描述:
0.81循环的分数是怎么算的
答
9/11=0.81818181.那么方法是什么?1/11=0.09090909......0.81818181818181...=9*0.09090909090909...=9*1/11=9/11
0.81循环的分数是怎么算的
9/11=0.81818181.那么方法是什么?1/11=0.09090909......0.81818181818181...=9*0.09090909090909...=9*1/11=9/11