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Ratios

Ratios. Objective: Learn to identify, write, and compare ratios and rates. Ratio. What is a Ratio? A ratio is a comparison of two quantities(numbers) using division. Remember!. A fraction is in simplest form when the GCF (greatest common factor) of the numerator and denominator is 1.

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Ratios

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  1. Ratios Objective: Learn to identify, write, and compare ratios and rates.

  2. Ratio • What is a Ratio? A ratio is a comparison of two quantities(numbers) using division

  3. Remember! A fraction is in simplest form when the GCF (greatest common factor) of the numerator and denominator is 1. Example:

  4. Try This! A recipe for homemade ice cream calls for 6 cups of cream, 1 cup of sugar, and 2 cups of chocolate chips. Write each ratio in all three forms. • Cups chocolate chips to cups of cream • Cups of sugar to total cups of ice cream For every 2 cups of chocolate chips there are 6 cups of cream Simplify Find total number of cups

  5. Writing Ratios Suppose Ms. McLamb drove 75 miles in 3 hours. Write the ratio of miles to hours in fraction form. This is a rate.

  6. Example 1: 20 students are asked to choose their favorite music genre. 8 chose pop, 7 chose hip-hop, and 5 chose rock. Write the ratios in all three forms. • Rock to Hip-hop • Rock to Pop and Hip-hop

  7. Example 2: On average most people can read about 600 words in 3 minutes. Write the ratio of words to minutes in simplest form.

  8. Example 3: Honey lemon cough drops come in packages of 30 drops per 10 oz bag. Cherry cough drops come in packages of 24 drops per 6 oz bag. Which package has the greater ratio of drops to oz?

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