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What is ratio?

Now Playing:What is ratio– Example 0
Intros
  1. Introduction to What Is Ratio
Examples
  1. Understanding Ratio Tables

    Fill in the blanks in the following ratio table.

    x y
    4
    8 14
    21
    What is ratio?
    Jump to:Notes
    Notes
    In this lesson, we will learn:
    • Understanding Ratio Tables
    • Part-to-part Ratio Vs. Part-to-whole Ratio
    • Evaluate Ratios Involving Unit Conversion
    • Determine the Scale of a Map (Ratio)
    • Analyze Ratios of 3 Objects

    Notes:
    • A ratio shows the relative values of two or more objects
    • A punctuation mark colon (:) or the word "to" is used to separate the values.
    • A ratio can be expressed as a fraction, which can be further converted to a decimal or a percentage.
    • A ratio should always be in its simplest form (no common factors).
    • The values in a ratio should always be integers if possible.
    • A ratio can be scaled up/down by multiplying/dividing the ratio numbers by the same value. This process is called scaling, and the value used for scaling is called the scale factor.
    • There are two types of ratio:
      • Part-to-part (comparing one part to another)
      • Part-to-whole (comparing one part to the whole)