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1 What Are Fractions?
A fraction represents a part of a whole thing.
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2 Mixed Numbers
Count whole things and parts of things at the same time
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Math 005 Remember that fractions are used to count a part of something.
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Math 006 How many figures?
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3 The Magic 1
When the numerator equals the denominator
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Math 007 What fraction (part) of this hexagon is red?
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Video 001 Fractions
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4 Equivalent Fractions, Part 1
Why 1/2 is the same as 3/6
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Math 008 Check out these circles:
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Math 009 What two equivalent fractions do you see here?
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5 Equivalent Fractions, Part 2
Doing it without pictures
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Math 010 What about these?
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Math 011 Here’s a quick trick to see if two fractions are equivalent:
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Math 012 Cross-multiplying the fractions
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6 Simplifying Fractions
How to write fractions using the smallest numbers possible
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Math 013 Here’s the game:
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Math 014 Let’s try one:
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Math 015 Reduce Fractions
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7 Improper Fractions
When the numerator is bigger then the denominator
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Math 016 Actually, there’s nothing improper about them…
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Math 017 Let’s do one without pictures.
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Math 018 Starting with a mixed number
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Math 019 Changing fractions and mixed numbers
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8 Compare Fractions: Equal Denominator
We're serving up pizza for this one
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Math 020 Here’s the problem:
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Math 021 How about this one:
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Math 022 Which is greater?
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9 Compare Fractions: Equal Numerator
Using tasty numbers instead of pizza slices
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Math 023 Ok, we saw how to figure out which fraction is bigger
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Math 024 Or… you can use the LCM
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Math 025 Which is greater?
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10 Add Fractions With Like Denominators
Just subtract the numerators
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Math 026 Let’s cut up a hexagon into pieces
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Math 027 How about this pizza?
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Math 028 Adding fractions
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11 Subtract Fractions With Like Denominators
Note those denominators
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Math 029 This works a lot like addition…
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Math 030 Subtracting fractions
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12 Adding and Subtracting Fractions With Different Denominators
Introducing the least common denominator
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Math 031 This is a bit tricky
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Math 032 Let’s do another one:
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Math 033 Adding fractions with different denominators
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13 Adding and Subtracting Fractions with Whole and Mixed Numbers
More fun with improper fractions
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Math 034 Add numbers and fractions
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Math 035 OK, that’s easy! But, what about…
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Math 036 Adding them all up
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14 Multiplying Fractions
You have six pizzas and you get to eat a third of them...
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Math 037 Multiply fractions with numbers
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Math 038 How to do this with math
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Math 039 multiplying with numbers
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15 Multiplication with Fractions and Whole Numbers
Start by multiplying the numerators and denominators
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Math 040 This is super easy!
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Math 041 Multiplying fractions
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16 Dividing Fractions
The "flip and multiply" trick
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Math 042 There’s a really cool trick
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Math 043 fraction divided by fraction
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17 Division With Fractions and Whole Numbers
Change the numbers to fractions and then go for it!
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Math 044 You use the same trick as you do when multiplying
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Reference Material
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Math 045 Check it out:
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Math 046 End of the Algebra Course
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