1. Lesson 3

1.3. Refresher

Mathematics 30-2 Module 5

Module 5: Rational Expressions

 

Refresher

 

This is a play button for Lowest Common Multiple.

Open Least Common Multiple (LCM) to review the definition and to use an applet to find the lowest common multiple of a set of numbers.

This is a play button for “Adding Fractions with Unlike Denominators.”

Source: Khan Academy
(cc icon BY-NC-SA 3.0)

Open “Adding Fractions with Unlike Denominators” for a review of addition techniques.


This is a play button for “Subtracting Fractions.”

Source: Khan Academy
(cc icon BY-NC-SA 3.0)

Review subtraction of fractions with “Subtracting Fractions.”


This is a play button for “Order of Operations.”

Source: Khan Academy
(cc icon BY-NC-SA 3.0)

 

This is a play button for “Order of Operations Example.”

Source: Khan Academy
(cc icon BY-NC-SA 3.0)

Review how to evaluate expressions using the correct order of operations by watching the videos titled “Order of Operations” and “Order of Operations Example.”


Go back to the Are You Ready? section and try the questions again. If you are still having difficulty, contact your teacher.