我想問循環小數的規律!
1/11=0 .0909..., 2/11=0 .1818..., 3/11=0 .2727..., 4/11=0 .3636..., 5/11=0 .4545..., 6/11=0 .5454..., 7/11=0 .6363..., 8/11=0 .7272..., 9/11=0 .8181..., 10/11=0 .9090...
它的規律是全是9的倍數!
快help me!