Ratio

Ratio

A ratio is a mathematical relationship that compares two amounts showing the number of times one value contains or is contained within the other. In simple terms, it is a way to compare quantities.

Definition

The ratio of two quantities, a and b in that order, denoted a:b, is the fraction a/b that results when a is divided by b. The ratio is defined only if b ≠ 0.

Types of Ratios

There are several types of ratios, including:

• Part-to-Part: This compares different parts of a group to each other.
• Part-to-Whole: This compares a part of a group to the whole group.
• Whole-to-Part: This compares the whole group to a part of the group.

Uses of Ratios

Ratios are used in many areas of life, including cooking, engineering, and statistics. They are also used in finance to determine the financial health of a company, such as the debt-to-equity ratio.

See Also

• Proportion (mathematics)
• Rate (mathematics)
• Percentage

References

Ratio Resources
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