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Adding & Subtracting Fractions

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by

Sofia Faugno

on 20 October 2014

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Transcript of Adding & Subtracting Fractions

Common Denominators
Subtracting Fractions
Improper Fractions & Mixed Numbers
Real Life Situations
so how can what we just taught you help you in real life?
There are three steps to adding fractions

Adding & Subtracting Fractions

Sofia, Melody & Devon

What is a fraction?
Tip: If both denominators are the same, you don't need to look for a common multiple.
A fraction is a numerical quantity that is not a whole number.
- Secondly just simply do what you did to the denominator to the numerator
-Finally then adding the two numerators together, creating your fraction.
-First, Make sure both denominators are equal by looking for a common multiple.
- Once you know how to add fractions, it's very simple to subtract fractions. The concept is all basically the same!
Fraction Vocabulary
Denominator
Numerator
Mixed Number
Improper fraction
Review Video
Adding Fractions
Mixed Number and Improper Fractions are just like normal fractions with a little twist.
Thank you!
Word problems!
Mixed Numbers
Improper Fraction
Aram is planning to cook 3 hamburgers for dinner, and each hamburger is made from 1/4 of a pound of meat.
Write a fraction representing how many pounds of meat Aram needs to buy at the store.
Kate has 2/3 left of her cookie, she already promised John 1/4 of it... How much will she have left after she has shared?
Joshua picked 2½ buckets of strawberries. Joe picked 7/2 buckets of strawberries. How many buckets of strawberries did the two boys pick? 1. Show answer as a mixed number. 2. Show answer as a improper fraction.
Practice Problems
for Mixed Numbers and Improper Fractions
5 7/10 + 7 10/15
8 5/6 - 4 6/9
12/10 + 15/8
17/8 - 20/16
Full transcript