Ratio and Rate

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# Ratio and Rate - PowerPoint PPT Presentation

Ratio and Rate. Section 5.1. Objectives. Write a fraction that shows a ratio comparison of two like measurements Write a fraction that shows a rate comparison of two unlike measurements Write a unit rate. Objective 1: Write a fraction that shows a ratio comparison of two like measurements.

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## PowerPoint Slideshow about 'Ratio and Rate' - gwen

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Presentation Transcript

### Ratio and Rate

Section 5.1

Objectives
• Write a fraction that shows a ratio comparison of two like measurements
• Write a fraction that shows a rate comparison of two unlike measurements
• Write a unit rate

### Objective 1:Write a fraction that shows a ratio comparison of two like measurements

Objective 1
• Numbers can be compared by subtraction
• Can be compared by division
• Ratio is comparison by division
• Common ways to write ratio.

30:10

30 ÷ 10

30 to 10

• First number to be compared is first number written or is the numerator. Second number second or is the denominator.
Objective 1
• Ratios written as fractions can be simplify, if possible
• Like measurements have same unit of measure
• Units are dropped in ratio with like measurements

### Objective 2:Write a fraction that shows a rate comparison of two unlike measurements

Objective 2
• Fraction comparing unlike measurements is called a rate
• Rate can be simplified
• Units are NOT dropped

### Objective 3: Write a unit rate

Objective 3
• Unit rate – rate rewritten so denominator is 1-unit measurement
• To write a unit rate
• Divide
• Keep unlike units