Fractions!

Fractions!

Let's Practice!

Please watch the video on the following slide.

Stop the video at minute 7:50. The instructor goes into negative numbers after that point which isn't going to be helpful.

Multiple Choice

Let's start with a simple question. If I want to find an equivalent fraction for 3/5, how would I do that? 

• Add some numbers to the numerator and denominator. 

• Multiply the numerator and denominator by a whole. For example, 2/2 or 3/3.

• Multiply the numerator by one number and the denominator by another.

Multiple Choice

True or False; we add up the numerators AND denominators of a fraction.

• True

• False

Multiple Choice

True or False; we can't add 2 fractions if they do not have like denominators.

• True

• False

Multiple Choice

What are 2 ways we can change a fractions denominator so that we can add/subtract when the denominators are not the same?

• Just add/subtract across.

• Add numbers to the top and bottom. Draw a picture.

• Area Model Partitioning and using LCM (Least Common Multiple)

• You can't add/subtract fractions with unlike denominators.