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Tuesday, November 27, 2012

Jessica D's Fraction Scribepost

Textbook pages 228-229

11) In a comedy review, each performer has a 1/4 h slot. How many performers are there in a 2 h show?

To answer this question, I needed to use the manipulatives method. So the answer to this question is 8 performers.

12) It takes 2 1/2 scoops of flour to make one cake. How many cakes do 15 scoops of flour make?

To answer this question you use the same method as the first one shown. The answer to this question would be 6 cakes.

13) Three quarters of a can of apple juice fills six glasses. How many glasses will a whole can of apple juice fill?

As of before, you would use the same method as I used in the first 2. So this answer would be 8 glasses.

Well here is a video on dividing fractions using the manipulatives method.

You can also use this link if you are still having troubles.

My test corrections:

My first mistake was on the question.. Tamar had 1/2 of an apple pie in her refrigerator. She ate 1/4 of this piece of pie. What fraction of a whole pie did she eat?
Instead of multiplying, I divided.

The right answer is 1/2 x 1/4 = 1/8

My second mistake was on the first question on the bottom part. I did everthing right except for the question. I used the question... How many groups of 1/2 goes into 5/6?

The actual answer is... What is 5/6 groups of 1/2?

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