Quantitative Methods - Unit 1 > Fractions
 
 

Addition
 

Worked example

Calculate 3/4  +  1/3

To add the fractions, the denominators must be the same.
We need a common denominator.

Look at the denominators and find their lowest common multiple (l.c.m).
This is a number which is divisible by both denominators.

In this case it is 12.