Showing posts with label fractions.. Show all posts
Showing posts with label fractions.. Show all posts

Scribe Post for April 23, 2009

Sunday, April 26, 2009
Today in class we were disscussing what was the answer to this question.
Which lot more hard top?
Carol Gardens
3/4 of the lot will be playground for children.
2/5 of the playground will be hardtop for basketball.

Flatbush
2/5 of the lot will be playground for children.
3/4 of the playground will be hardtop for basketball.
The width is 100 meters and the length is 50 meters.
(both lots are the same size)
Draw a picture that shows the two lots to figure out the answer.
Carol Gardens
The pink shows how much playground is in carol gardens. This is 3/4 of the lot.

Now, we have to divide the playground (the pink) into fifths in order to get the answer. Once you cut 3/4 into fifths there would be 20 pieces but fifteen of the pieces is playground. We then have to change the denominator of 5 into a denominator of 15 so we could know how many squares to colour in. So, 2/5 times the bottom to 20 is 3. What you do to the top you do to the bottom so 2x3=6. So that means you have to colour in 6 out of 15 squares.





Flatbush
The blue part of this picture is how big is the playground in the lot. It is 2/5 of the lot.


We have to divide the playground (the blue) into fourths in order to get the answer. Cut 2/5 into fourths there would be 20 pieces but eight of the pieces is playground. We then have to change the denominator of 4 into a denominator of 8 so we could know how many squares to colour in. So, 3/4 times the bottom to 20 is 3. What you do to the top you do to the bottom so 3x2=6. So that means you have to colour in 6 out of 8 squares.



From the two pictures you could see that both of the hardtops are equivalent. They both make a fraction of 6/20. So, the answer is the Carol Gardens and the Flatbush have the same amount of hardtop on their playgrounds.

The next scribe is.... MAARC ! :D