Recurring decimal

In a decimal fraction, if a figure or a set of figures is repeated continuously, then that number is called a recurring decimal. In a recurring decimal, if a single figure is repeated, it is expressed by putting a dot on it and if a set of figures is repeated, it is expressed by putting a bar on the set of numbers getting repeated.

For example:

1/3 = 0.3333 . is a number with 3 as the recurring decimal.
53/99 = 0.535353 . is a number with 53 as the recurring decimal.