Quantitative Methods - Unit 1 > Fractions
 
 

Subtraction

This is very similar to adding fractions.

Worked example

Calculate 1  7/8  -  1/4

First convert any mixed numbers to improper fractions.

15/8  -  1/4

The common denominator is 8.

15/8   -   2/8

= 13/8

= 1   5/8