Decimals to Fractions

As a review of decimals-
Powers of tens-
5.02/ 10^2= 0.0502
     4.07*10^-2=
     4.07*1/10^2= [4(1)+0(10^-1)+7(10^-2)]
     78.392/10^7= 0.0000078392
Converting decimals to fractions-
0.1111= 1/9
0.0101010=1/99
0.001001001=1/999
2/9=.2222...
3/9=1/3=.3333...
4/9=.4444...
5/9=.5555.
6/9=2/3=.6666...
7/9=.7777...
8/9=.8888...
9/9=1=.9999... In order to verify this: 2(1/9)=0.111(2)
48/99=.484848....
29/999=.029029029...