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## Ratio and Rate

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