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Author:
Charlie Paule

Understand what a Rational Number is.

Learn to add, subtract, multiply and divide rational numbers (fractions).

Learn what a ratio is and what a proportion is.

Learn to solve for an unknown in a proportion.

Describes rational numbers and fractions, and how to add, subtract, multiply and divide them.

Describes ratios and proportions and how to solve for an unknown in a proportion.

Image by Michael Connors.

Tutorial