body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

1. Terminating and Repeating Decimals

Continue to next subchapter

Exercise 24 Page 269

Start by writing the given mixed number as a fraction. Then, expand the numerator and the denominator of the fraction to write it as a decimal.

- 7.05

Practice makes perfect

We want to write the given mixed number as a decimal number. -7 120 We will first rewrite it as a fraction. Let's also ignore the negative sign for just a moment.

7 120

▼

Rewrite 7 120 as 141/20

a bc=a* c+b/c

7* 20+1/20

Multiply

140+1/20

Add terms

141/20

We found that 7 120 is equal to 141 20 when it is written as a fraction. Next, we can expand the numerator and the denominator of the fraction to write it as a decimal. Let's do it!

141/20

a/b=a * 5/b * 5

141* 5/20* 5

Multiply

705/100

Calculate quotient

7.05

We found that 14120 written as a decimal is 7.05. Since we previously found that 7 120 is equal to 14120, we can say that 7 120 written as a decimal is 7.05. 7 125= 14120=7.05 Therefore, - 7 120 is equal to - 7.05.

Subchapter links

Guided Practice p.266

Independent Practice p.267-268

H.O.T. Problems p.268

Standardized Test Practice p.268-270

Extra Practice p.269

Common Core Review p.270