Fractions, Decimals, & Percents Study Notes

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Questions and Answers

What is the least common denominator?

The highest number that can divide both denominators.
The smallest number that can be multiplied equally by the denominators of two fractions.
The least common multiple of the denominators of two or more fractions. (correct)
The sum of the denominators of two fractions.

What is a percent?

A ratio that compares a number to 100.

What is a percent proportion?

One ratio that compares part of a quantity to the whole quantity, set equal to another ratio that is the equivalent percent written as a fraction with a denominator of 100.

What is a proportion?

<p>An equation stating that two ratios or rates are equivalent.</p> Signup and view all the answers

What is a rational number?

<p>A number that can be written as a fraction.</p> Signup and view all the answers

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Study Notes

Fractions, Decimals, & Percents Study Notes

Least Common Denominator (LCD): The smallest common multiple of the denominators in two or more fractions, essential for performing operations like addition and subtraction on fractions.
Percent: A specific type of ratio that expresses a number as a part of 100, making it easy to compare different values.
Percent Proportion: A mathematical equation where one ratio compares a part to the whole, set equal to another ratio representing the equivalent percent as a fraction over 100, useful for solving problems involving percentages.
Proportion: A mathematical statement that indicates two ratios or rates are equal, allowing for comparisons between different quantities.
Rational Number: Any number that can be expressed as a fraction, including integers and finite or repeating decimals, highlighting the connection between different types of numbers.