Numbers and algebra

Ratio

A comparison of two quantities by division.

Common notationa:b or a/b

In one sentence

What does Ratio mean?

A comparison of two quantities by division.

How it is written

a:b or a/b

A compact example

A ratio of 6 red objects to 3 blue objects simplifies from 6:3 to 2:1.

Where this fits

When should you learn Ratio?

The first encounter is not the final level. Many ideas begin visually, become computational in high school and become formal in college.

  1. 1Pre-high schoolUsually introduced
  2. 2High schoolGreater depth
  3. 3CollegeGreater depth
  4. 4AdvancedGreater depth
Typical subjects
  • Arithmetic
  • Algebra
Know first
  • Basic arithmetic
What it unlocks
  • Equations
  • Functions
  • Precalculus

Clear answers

Questions about Ratio

What does Ratio mean in mathematics?

A comparison of two quantities by division.

How is Ratio written?

A common notation is a:b or a/b.

What is an example of Ratio?

A ratio of 6 red objects to 3 blue objects simplifies from 6:3 to 2:1.

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