CPM Homework Help : CC2 Problem 1-46

Look at the representations shown in the Math Notes box for this lesson (“Representations of Portions”). Copy the diagrams below and write a fraction and a percent for the shaded portion of each one.

Hint (a):
A fraction is a number that represents a part of the whole. How many parts are shaded and how many total parts are there?
Hint 2 (a):
The shaded pieces make up the numerator while the total number of pieces makes up the denominator.
Partial Answer (a):
$\text{Fraction}: \frac{1}{4}$
More Help (a):
To convert from fraction to percent, use standard long division to get the decimal form, and then multiply by $100$ or shift the decimal point twice to the right. For example,
$\frac{3}{20} \rightarrow 0.15 \rightarrow 15 \text{ percent}$
Partial Answer 2 (a):
Percentage: $25\%$

Hint (b):
Think of each triangle as two pieces. Then use the method from part (a).

shaded tile $\space$

tile $\space$

Hint (c):

See parts (a) and (b).