Helpful Rules for Comparing Fractions

Hello,
I mention these in the accompanying video, but I wanted to have them in print as well. So here goes:

LIKE NUMERATORS
To have like numerators means that two or more fractions have the same numerator (top number). When comparing fractions with like numbers, follow these steps:
1) Make sure the numerators are the same.
2) Look at the denominators (bottom numbers)
3) The fraction with the larger denominator is the SMALLER fraction. Again, the fraction with the larger denominator is the SMALLER fraction.

Example:
2/5 and 2/9
They both have 2 in the numerator. So I look at the denominators. 9 is the larger denominator, so 2/9 is the SMALLER fraction. Therefore, 2/5 is greater than 2/9.

LIKE DENOMINATORS
To have like denominators means that two or more fractions have the same denominator (bottom number). When comparing fractions with like denominators use these steps:
1) Make sure the denominators are the same.
2) Look at the numerators
3) The fraction with the smaller numerator is the SMALLER fraction.

Example:
3/8 and 5/8
They both have 8 in the denominator. So I look at the numerators. 3 is the smaller numerator, so 3/8 is the smaller fraction. Therefore, 3/8 is less than 5/8.

Comparing and Ordering Fractions Video

Reducing/Simplifying Fractions Practice

Here are the 5 fractions I would like you to reduce to simplest form.

1) 16/42

2) 48/64

3) 21/30

4) 24/60

5) 72/84

Please do these in your math journal and show all of your work.

Screenshots - Factor Buddy HW for January 17th

IXL SKILLS for January 17th - 23rd

You must MASTER ALL of these skills by Monday, January 23rd.

THIRD GRADE
Multiplication Skill Builders (F.1 - F.13)
Division Skill Builders (H.1 - H.12)

Factor Buddies

Divisibility Rules and Factors Part II

Divisibility Rules and Factors Part I

Digital Root

Math Journal Word Problem - January 4, 2012

Mr. C ran an average of 4.2 miles a day in 2011. How many more miles will he run in 2012 if he averages 6.7 miles per day? Remember 2011 had 365 days and 2012 will have 366. Please rewrite this problem in your math journal, solve it, and then give a written explanation.