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Introduction To Fractions Worksheets With Answer Key - Tutoring And Learning Centre, George Brown College - 2013

Introduction to Fractions

Part A – What is a Fraction?

Count the number of whole pizzas. How many do we have?

We have

5 whole

pizzas.

Count the number of whole pizzas. How many do we have?

We have less than one whole

pizza.

Sometimes we cannot count in whole numbers. In these cases we need to express

quantities in parts. Everyday words such as slices, parts, sections, chunks, and pieces

are used to express parts of a whole. In math, we use fractions to depict these values.

A fraction consists of two numbers separated by a bar in between them.

• The bottom number, called the denominator, is the total number of equally

divided portions in one whole.

• The top number, called the numerator, is how many portions you have.

• The bar represents the operation of division.

Numerator

We have 1 out of the

Denominator

4 portions.

The whole is divided

into four equal parts.

We always assume that every whole is

divided into equal parts. Observe that

Figure 1.1 has equally divided slices

while Figure 1.2 does not.

Tutoring and Learning Centre, George Brown College 2013

Introduction To Fractions Worksheets With Answer Key - Tutoring And Learning Centre, George Brown College - 2013