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Adding Fractions with Unlike Denominators
Transcript of Adding Fractions with Unlike Denominators
I gave the rest to my hungry-looking husband. How much Hershey's chocolate did I eat in all? The Pizza Problem Mrs. Daniszewski and Miss Sreniawski ordered two identical-sized pizzas for the teachers, one with cheese and one with mushrooms, anchovies and pineapple.
The teachers ate 5/6 of the cheese pizza and 1/2 of the mushroom, anchovy and pineapple pizza.
How much pizza did those hungry teachers eat? Draw a picture of how you solved this problem in your green notebook. How can we change this problem so we have common denominators? Make the DENOMINATORS the same The LCM Find the Least Common Multiple of...
3 , 4 :
6, 9: The Standard Fraction addition Algorithm In a fraction addition problem with different denominators:
Find the LCM of the denominators
Rewrite each term as an equivalent fraction using like denominators
Add the numerators
Keep the denominator the same
Reduce if necessary Since I can't simplify 5/6 or 7/9, I need to find the LCM
of 6 and 9.
6, 9: I need to make equivalent fractions
to the ones I started with (5/6 and 7/9). I'm going to add the numerators and keep the denominators the same A fraction is a part of a whole.
A fraction is written with a numerator on top and a denominator on the bottom. The numerator tells ho Show your work in your green notebook.
Share your answer with your partner.
Did you get the same answer?