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Tuesday, November 27, 2012

diogo's fraction scribepost

Textbook 228-229
 10. Divide
a.) 1 1/12 divided by 2 1/2

You need to turn the mixed numbers into an improper fraction.1 and 1/2 becomes13/12 and 2 and 1/2 becomes 5/2. Since you have to do the reciprocal on the denominator, you multiply 13/12 by 2/5 on the top (numerator). Then simplify your answer if needed. 

b.) 8/11 divided by 4/5

Do the reciprocal on the denominator then after you do that step, you put the reciprocal on the denominator and multiply those. Simplify if it is needed, in this case, I simplified it by 4.

c.) 1 3/8 divided by 2 3/4

Do the reciprocal on the denominator then after you do that step, you put the reciprocal on the denominator and multiply  those. 

11. In a comedy review, each performer has 1/4 h slot.  How many performers are there in 2 h slot? There will be 8 performers in 2h slot

*Since 2 is a whole number, make it into a fraction by using 1 as a denominator. So it becomes 2 over 

12. It takes 2 1/2 scoops of flour to make 1 cake.  How many cakes do 15 scoops of flour make? 15 scoops of flour make 6 cakes
Here's a good fraction game
and a good video

my test corrections





1 comment:

  1. Good job Diogo! I like how you explained how you got your answers and how you included a video to help us understand better. Next time, you can improve by adding pictorial representations.

    ReplyDelete

 

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