Review Worksheet

Please go over some of the core lessons from the skills we've learned over the last week.

Finish the worksheet handed out in class. We'll go over it tomorrow morning.

Test on Wednesday

Please make sure that you are studying for tomorrow's test. It will cover the following:

LCM
Comparing Fractions
Adding and Subtracting Fractions
Multiplying & Dividing Fractions

Remember, a completed study guide is worth 5 extra points!

Multiplying and Dividing Fractions

Complete worksheet 5-4, all odd numbers.

Adding and Subtracting Fractions

When adding or subtracting proper fractions, follow these steps:

1. Find the lowest common denominator -- or the LCM of the denominators.
2. Add the numerators
3. Simplify (reduce or change to a mixed number)

But what if you are adding mixed numbers?

1. Change your fractions into improper fractions
2. Follow from step 1 above.

Still have questions? Visit this tutorial.

Homework: 5-1 Q 1-6, 9-11, 13-20

LCM to compare fractions

LCM = least common multiple.

Often, we use the LCM to find the least common denominator in a set of two or more fractions.

Then, you can convert your original fractions to equivalent fractions that have similar denominators so you can compare.

Got questions? Look at this slideshow for a refresher.

Tonight, finish questions 1-18 on Worksheet 5:1.

Quiz Tomorrow!

Look at your notes and complete your study guide to get ready for tomorrow's quiz. 

Don't forget: a completed study guide earns you 5 bonus points!

Simplifying Fraction II

We reviewed how to simplify a fraction with a variable.

Tonight, try solving the problems on the worksheet by writing out all the factors and then crossing out terms that are similar

Look at the "top" and the "bottom" of this fraction. Find a common number that will divide evenly into both 36 and 24 (answer is 12).

Then, write out the factors of the variables.

xxxy

xyyyy

You can cancel out one x and one y based on the factors

The answer, then is:

Remember, quiz Friday!

Simplifying Fractions

Simplifying fractions is pretty, well, simple.

1. Find the GCF between the numerator and the denominator

2. Divide the numerator and denominator by the GCF to get a simplified equation

Look at the examples below:

12/15
GCF = 3
Simplified fraction = 4/5

4ab/8b
GCF= 4b
Simplified fraction = a/2


Remember: Any number or variable divided by itself = 1.

Tonight, please complete questions 1-16 on Worksheet 4-4.

GCF

Students should work on the worksheet they were given in class today.

Work will be due on Tuesday. Expect to be given a review sheet for the long weekend.

Let's keep our skills fresh.

Prime Factorization and GCF

Please complete the Reteach 4-3 sheet for Thursday.

Need to review prime factorization? Try these interactive sites that will give you more practice.

http://www.mathgoodies.com/factors/prime_factors.html

http://www.mathplayground.com/factortrees.html