Ratio A ratio is a _____of separate but related quantities.

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Presentation transcript:

Ratio A ratio is a _________of ____ separate but related quantities.

Ratios Example: Ratio of Georgia fans to Alabama fans 15 Georgia fans and 20 Alabama fans What is the ratio of GA fans to AL fans? The _____ of the ratio is very important— whichever word comes first, the _____ must come first. ___:___

Notations for ratios ____ different ways to write a ratio ___:____ ____notation ___to___ ____notation — ____notation

Describe these ratios. 1. 3:4 4. 3: to /3 3. 4/ to 7

Ratios can be written to compare ______ to a part, a ______ to the whole, or the whole to a ______.

Make your own ratios

Practice What if your ratio was 4:10—Florida wins to Georgia wins? In fraction form? — Since I can write my ratio as a _____, I can simplify it.

Equivalent Ratios _______ ratios are ratios that name the same ________. You can find an equivalent ratio by ______ or ______ both terms of a ratio by the same number.

Now you try it: Write 3 equivalent ratios comparing yoyo’s to bubbles.

You and your partner have 5 minutes to go find the following ratios in the room. Record both the original and simplest form of the ratio. 5 to 10 ⅞ 11:12 Boys to girls adults to kids

Proportions This is an example of a proportion. A proportion is an ________ that shows two __________ ratios.

Examples of proportions One bag of puppy chow lasts 4 weeks. Two bags of puppy chow lasts 8 weeks. 1 bag = 2 bags 4 weeks 8 weeks

Ratio site practice Let’s get started!