Add and Subtract Like Fractions

To add (or subtract) like fractions, add (or subtract) the numerators, and put the result over the common denominator.

For example, let's find the sum:

6 12

+

4 12

Observe that the denominator is same in both the fractions.

So, add the numerators, and put the obtained result over the common denominator.
 

6 12

+

4 12

=

6 + 4 12

=

10 12

Now, simplify:
 

10 12

=

10 ÷ 2 12 ÷ 2

=

5 6

 

So,

6 12

+

4 12

=

5 6

.