Common Core Math Vocabulary

Fraction - Definition with Examples

What is Fraction?

Fractions represent equal parts of a whole or a collection. 

Fraction of a whole: When we divide a whole into equal parts, each part is a fraction of the whole. 

For example

Fraction of a Whole

Fraction of a Whole

 

Fraction of a collection: Fractions also represent parts of a set or collection. 

For example

There are total of 5 children.

3 out of 5 are girls. So, the fraction of girls is three-fifths ( 35 ).

2 out of 5 are boys. So, the fraction of boys is two-fifths ( 25 ).

 

Fraction notation

A fraction has two parts. The number on the top of the line is called the numerator. It tells how many equal parts of the whole or collection are taken.  The number below the line is called the denominator.  It shows the total divisible number of equal parts the whole into or the total number of equal parts which are there in a collection. 

Fraction Notation

 

Fractions on a number line: Fractions can be represented on a number line, as shown below. 

Fraction on a number line

 

For examples,

Fraction on a number line example

 

Real life examples

The most common examples of fractions from real life are equal slices of pizza, fruit, cake, a bar of chocolate, etc.

Real life example of Fraction

 

Non-examples

When the parts of the whole are unevenly divided, they don’t form fractions.

Non-example of Fraction

 

Types of fractions

Unit fractions

Fractions with numerator 1 are called unit fractions.

Unit Fractions

Proper fractions

Fractions in which the numerator is less than the denominator are called proper fractions.


Proper Fraction

Improper fractions

Fractions in which the numerator is more than or equal to the denominator are called improper fractions.

Improper Fractions

Mixed fractions

Mixed fractions consist of a whole number along with a proper fraction.

Mixed Fractions

 

  Fun Facts

  • The word ‘fraction’ has been derived from the Latin ‘fractus’ which means “broken”.

  • Fraction has been into existence from the Egyptian era which is known to be one of the oldest civilizations in the world. However, fractions were not regarded as numbers, in fact, they were used to compare the whole numbers with one another.

 

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