CPM Homework Help : CC1 Problem 5-4

The diagrams below show the portion of another class mural that Josephine was supposed to paint and how much she actually did paint. Use the pictures to answer the questions that follow.

The portion Josephine was supposed to paint:

A rectangle with a picture in the upper left corner, going to about the middle of the rectangle, both vertically and horizontally.

The portion Josephine actually painted:

A rectangle with only the right vertical half of the picture Josephine was suppose to paint.

Approximately what portion of the painting was Josephine supposed to paint?

Hint (a):
Lines have been drawn on the first mural to help you estimate.

The rectangle with the picture in the upper left corner, with lines drawn through the center, horizontally and vertically.

Approximately what fraction of her assigned portion did Josephine actually complete?

Hint (b):
Another line has been drawn on the second mural to help you estimate.

The same rectangle as the previous rectangle, but with a vertical line drawn in the center of the left half.

Write a product to show what portion of the mural Josephine actually painted.

Hint (c):
A few more lines have been added to the diagram.
$\text{How can you write }\frac{1}{2}\text{ of }\frac{1}{4} \text{ as a product?}$

The same rectangle as the previous rectangle, but with a vertical line drawn in the center of the right half.

Answer (c):

$\left ( \frac{1}{2} \right )\left ( \frac{1}{4} \right )=\frac{1}{8}$