Fractions: Part of a set

A fraction represents a part of a whole. It is written as two numbers separated by a slash, like $$\frac{a}{b}$$ , where 'a' is the part and 'b' is the whole.

The numerator is the top number in a fraction. It shows how many parts we have.

The denominator is the bottom number in a fraction. It shows how many equal parts the whole is divided into.

Equivalent fractions are different fractions that represent the same value, like $$\frac{1}{2}$$ and $$\frac{2}{4}$$ .

To find a fraction of a set, divide the number of items in the set by the total number of items. For example, if there are 4 red balls out of 10 total balls, the fraction is $$\frac{4}{10}$$ .

If all slices of a pizza are eaten, the fraction is $$\frac{8}{8}$$ , which means the whole pizza is gone.

The fraction of yellow bags is $$\frac{6}{10}$$ .

The fraction of shaded stars is $$\frac{3}{8}$$ .

The fraction of characters wearing hats is $$\frac{2}{5}$$ .

The fraction of superheroes with capes is $$\frac{4}{9}$$ .