Ratios PreAlgebra Farris 2015. I can write ratios as fractions in simplest form. I can simplify ratios involving measurement.

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Presentation transcript:

Ratios PreAlgebra Farris 2015

I can write ratios as fractions in simplest form. I can simplify ratios involving measurement.

Ratio  Comparison of two quantities by division. The ratio is usually written as a fraction in simplest form.  3 to 9 3:9 3 9

Let’s start with music 

Ratios  Can express part to part  Can express part to whole  Can express whole to part relationships

Let’s Do It  Express the ratio in simplest fraction form  12 baskets in 18 attempts 2 3

Let’s Do It  Ten out of every 30 Americans own a portable MP3 player. Express this ratio as a fraction in simplest form. 1313

Let’s Do It  Express as a fraction in simplest form  9 out of 15 pets  4 players to 52 cards  96 people to 3 buses

Ratios and Measurements  Express as a fraction in simplest form  3 pints to 4 quarts  2 pounds to 6 ounces  6 gallons to 3 quarts

Word Problem  A water park has 14 body slides, 8 tube slides, 2 types of swimming pools, and 6 water play areas. Use this information to write each ratio as a fraction in simplest form.  Body slides: tube slides  Play areas : tube slides  Slides : not slides  Slides: all attractions