### Home > CC1MN > Chapter 3 Unit 3A > Lesson CC1: 3.1.5 > Problem3-73

3-73.

In this lesson, you looked for ways to convert between equivalent forms of fractions, decimals, and percents. Using the portions web, write the other forms of the number for each of the given portions below. Show your work so that a team member could understand your process.

1. Write $\frac { 4 } { 5 }$ as a decimal, as a percent, and with words/picture.

$\text{This fraction can be written as }\left ( \frac{4}{5} \right )\left ( \frac{20}{20} \right )=\frac{80}{100}.$

As a decimal and a percent, this is equivalent to $0.8$ or $80\%$. Can you describe this portion in words?

2. Write $0.30$ as a fraction, as a percent, and with words/picture.

In words, this is written as three tenths or thirty hundredths. Now express it as a fraction and a percent.

3. Write $85\%$ as a fraction, as a decimal, and with words/picture.

Refer to part of the Math Notes box from Lesson 3.1.5 below for help converting percents to decimals and fractions.

$\left. \begin{array} { l } { 78.6 \% = 78.6 \div 100 = 0.786 } \\ { \text { Percent to fraction: } } \\ { \text { Use } 100 \text { as the denominator. } } \\ { \text { the number in the percent as } } \\ { \text { numerator. Simplify as need } } \\ { 22 \% = \frac { 22 } { 100 } \cdot \frac { 1 / 2 } { 1 / 2 } = \frac { 11 } { 50 } } \end{array} \right.$

$0.85, \frac{85}{100}= \frac{17}{20},\text{ eighty-five hundredths}$

4. Write one and twenty-three hundredths as a percent, as a decimal, and as a fraction.

• One and twenty-three hundredths is greater than one, so each equivalent form should represent a portion greater than one.