fraction easy for you!!
TRANSCRIPT
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The
Magic
One
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What fraction (part) of this hexagon is red?
If you said, "All of it." You are right... But, your answer isn't a fraction.
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Improper
Fraction
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Actually, there's nothing improper about them... It's just when the numerator is bigger then the denominator.
Like
So, let's see what this means. Let's looks at a hexagon... That's 7 pieces...
Hey, this is just !
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How about ?
So, let's compute :
9 goes into 11 once with 2 left over
and here's how we write it all
See how we stick the original denominator under the 2 ?
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Let's change to an improper fraction.
So,
How to change MIXED NUMBER to Improper Fraction…
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Adding Fractions
When the Denominators are the Same
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So
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Let's do one without pictures: Easy!
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Adding Fractions
When the Denominators
are Different
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Let's try this:
The main rule of this game is that we can't do anything until the denominators are the same!We need to find something called the least common denominator (LCD)... It's really just the LCM of our denominators, 2 and 3.
The LCM of 2 and 3 is 6. So, our LCD 6.
We need to make this our new denominator...
Change the :
Change the :
Now we can do it!
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What is LCD??
What is LCD??
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Multiplying
Fractions
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Let's just do one:
We just multiply straight across...
Reduce it!! Make it simplest!!!
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Let’s do this!!!
is already a fraction... But, what about the 6?
Guess what? We can write 6 as .
Think about it:
is the same as ... which is 6!
(You can do this with any number!)
Back to the problem:
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Let's change to an improper fraction.
What about this?
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What about this?
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Dividing Fraction
s
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There's a really cool trick for these...
“FLIP and MULTIPLY!”
Check it out:
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What about this?
Reduce it!! Make it simplest!!!
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How about another one?
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The End