2 marks

This display is based on a typical examination question. You can change some of the details in the question and then see the answer, step by step.

A similar question appeared on an exam in 2003.

## Summary/Background

The top part of a fraction is called the

**numerator**; the bottom part is called the**denominator**. You need to know how to simplify, add, subtract, multiply and divide fractions, and how to use the "Fractions" button on your PAGE(calculator,calculator).## Software/Applets used on this page

## Glossary

### denominator

the integer on the bottom of a fraction

### fraction

A ratio of two numbers or polynomials.

### numerator

the integer on the top of a fraction

### union

The union of two sets A and B is the set containing all the elements of A and B.