 Reading and writing fractions | Learning concepts
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A fraction is a quantity that express a part of the whole.

Examples: A quarter is a fraction of the whole Reading and Writing Fractions

We represent a fraction by two numbers written above and below a horizontal line.

The number written above the horizontal line is called the numerator and the number below the horizontal line is called the denominator .

The horizontal line is called the fraction line or vinculum. The numerator represents the number of parts selected/we have.

The denominator represents the total number of parts the whole is divided into. Numerators are read using regular numbers, and denominators are read using ordinal numbers (third, fourth, fifth, etc.). Halves and Quarters as Fractions

Half is represented by 1/2, quarter by 1/4, and three quarters by 3/4. Fraction of a Collection

In a group of persons/things, we can represent a person/something as a fraction of the whole group.

The denominator of the fraction represents the total number of persons/ things in a group/collection.

The numerator represents the number of the things/persons selected from the collection/group

Example:

Question: There are 2 boys and 3 girls in a class.

1. Write the number of boys as a fraction of the total number of students in the class.
2. Write the number of girls as a fraction of the total number of students in the class.

Answer: There are 5 students in the class.

1. Since there are 2 boys out of 5 students, write 2 as the numerator and 5 as the denominator to represent the number of boys as a fraction of the total number of students in the class. That is 2/5.
2. Since there are 3 girls out of 5 students, write 3 as the numerator and 5 as the denominator to represent the number of girls as a fraction of the total number of students in the class. That is 3/5 New words:

Fraction: The word fraction is derived from the Latin word ‘fractio’ which means ‘to break’.

Vinculum: The word ‘vinculum’ is a Latin word, which means a bond or a chain.

Vinculum is also the name of a band of connective issue found in our fingers.

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