Answer: A fraction is a way to represent parts of a whole. The denominator b represents the number of equal parts the whole has been divided into, and the numerator a represents how many parts are included. The denominator, b
, cannot equal zero because division by zero is undefined.
In the image below, the circle has been divided into three parts of equal size. Each part represents 1/
3 of the circle. This type of model is called a fraction circle. Other shapes, such as rectangles, can also be used to model fractions.
