Superheroes Presentation

Fraction edition

start

Be your own hero!!

Mr. Riddle

Are you tired of not getting fraction questions right? it's time to change.

• You'll need a sheet of paper and a pencil. You must show your work for the practice problems.
• Start with the intro problems. This is just so you can get an idea of where you're at right now.
• You're ready to move on to the practice problems. If you get them wrong, there will be a little help.
• If you keep seeing the same video, that means you need to see me so we can fix it.
• When you're ready, take the quiz.

If you want to be a hero, you have to put in the work.

hero training

Here the basic info, just so we are all saying the same things and we all mean the same thing when we use them.

the fraction 411

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Celebrate your newfound Fraction Hero status

Add the numerators, leave the denominators alone

Change the numerators by the same factor as the denominator

Find a common denominator for both fractions.

step 4

step 3

step 2

step 1

Adding Fractions

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5/6 - 3/4

Check your answers at the table. If you get the ok, move on to the Classroom for the quiz. If not, check out the video on the next page before taking that quiz.

3/8 + 3/10

1/6 + 3/4

practice

video

INSERT YOUR VIDEO HERE

Numerator

This top number indicates how many pieces of something we have.

The bigger this number is, the smaller the pieces are. A demonimator of 3 means we split something up into 3 pieces. Every piece is a big part. A demoniator of 12 means we split something up into 12 pieces. Thos pieces are all going to be small pieces.

Denominator

This bottom number indicates how many piece something has been divided into.

How do I find a common denominator? Try these...

Finding Common Denominators

The least common multiple is the lowest common denominator

• First, see if the smaller number goes into the bigger one. Does it? Congratulations - that means the bigger number is your common denominator.
• Don't want to mess with finding the LCM? No worries. Just multiply the numbers together. You might need to reduce at the end, but this number will always work.

When you found common denominators, you changed the bottom number by multiplying it. Whatever you multiplied the bottom by, do the same thing to the top. Now it's fair.

Remember, math is fair.

A fraction is just a number, so we need to treat the top and bottom of that number the same.

Remember that you're adding pieces. The denominator is just telling you how big the pieces are so when you add, you don't change that number.

You're ready to add, so add

How super are you? While you were learning to add fractions, you secretly learned how to subtract them too. How, you ask? Easy - to subtract fractions you do everything you did for adding fractions. The only difference is that at the end when you added, now you'll subtract. Just like that - new power unlocked!

Congratulations!!

That's the whole thing.