All the fraction that is equivalent to 0.6
6/10
60/10
6/100
10/6
60/100

0.6 can be read as 6 tenths, because the 6 is in the tenths place. 
As a fraction, that's 6/10.

60/100 is also equivalent, because you can multiply the numerator and denominator of the fraction 6/10 by 10, and it becomes 60/100. If you do the same thing to both the numerator and denominator then the fraction is still equivalent.

Only

6/10 and 60/100 are equivalent to 0.6

Because 0.6 is 60%
60/100 and if you simplify it then you will get 6/10