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What is a Fraction

Fraction Definition:

An fraction is an expression that measures equal parts of a whole. It consists of a numerator (top) and a denominator (bottom).
We denote a fraction using the image below:


For the image above, the 9 purple sections denote the numerator or top. The 9 purple and 1 white section (10 sections) denote the denominator or bottom. We write the fraction below:

9
10

Proper Fractions:

Proper Fractions are fractions less than one. The numerator (top) is less than the denominator (bottom).

Proper Fraction Examples:

1
3

9
10

Improper Fractions:

Improper Fractions are fractions greater than or equal to one. The numerator (top) is greater than or equal to the denominator (bottom).

Improper Fraction Examples:

3
3

12
10


How does the What is a Fraction Calculator work?

This lesson walks you through what a fraction is and the different parts of a fraction.

What 4 formulas are used for the What is a Fraction Calculator?

  1. Fractions are written as n/d where n is the numerator and d is the denominator
  2. Fractions > 1 = Improper
  3. Fractions < 1 = Proper
  4. Fractions = 1 = Whole

For more math formulas, check out our Formula Dossier

What 5 concepts are covered in the What is a Fraction Calculator?

denominator
The bottom portion of a fraction. For a/b, b is the denominator
fraction
how many parts of a certain size exist
a/b where a is the numerator and b is the denominator
numerator
the number above the line in a common fraction
prealgebra
gives you introductory concepts related to numbers and equations to prepare you for Algebra.
whole number
numbers that include natural numbers and zero
{0, 1, 2, 3, ...}

What is a Fraction Calculator Video


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