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Big Ideas Math: Modeling Real Life, Grade 8

BI

Big Ideas Math: Modeling Real Life, Grade 8 View details

4. Rational Numbers

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Exercise 4 Page 396

Start by writing the given mixed number as a fraction. Then, divide the numerator by the denominator.

2.54

Practice makes perfect

We want to write the given mixed number as a decimal. 2 611To do so, we will first rewrite it as a fraction.

2 611

▼

Rewrite 2 611 as 28/11

a bc=a* c+b/c

2* 11+6/11

Multiply

22+6/11

Add terms

28/11

We found that 2 611 written as a fraction is 28 11. Recall that this means 28÷ 11. Therefore, we will divide the numerator of this fraction by its denominator. Let's do it!

We found that 2811 written as a decimal is 2.54. Since we previously found that 2 611 is equal to 2811, we can say that 2 611 written as a decimal is 2.54.

Subchapter links

Try It p.396-397

Self-Assessment for Concepts & Skills p.397-398

Review & Refresh p.399

Concepts, Skills, & Problem Solving p.399-400