Mathematics Lessons - 6 (Arithmetic Review For College)

This is a series of mathematics lessons that will review the important topics in arithmetics with examples and solutions.

These lessons will also be useful as a pre-Algebra review.
The videos are presented by the Portland Community College.

Math 20 - Lesson 21

Division of Fractions

Math 20 - Lesson 22

Multiplication and Division of Mixed Numbers
Errata: At 24:02, 7/15 divided by 25/6. There was an error in the canceling. The correct answer should be 14/125.

Math 20 - Lesson 23

Multiplication and Division of Mixed Numbers

Math 20 - Lesson 24

Listing Fractions in Order of Value

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Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

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