Ratios and Proportions

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Summary / How To / Steps

Ratio

Definition: A ratio is the comparison of two or more things in quantities and numbers

Proportion

Definition: Fractions that compareto eachjother to figure out how much of it is there :)

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Easy Problems: What is ratios of kids to teachers?
13/3/16

What is the RATIO of people to pets in your house?

ex: 4:1

X/100 = 7/14 answer: x = 50

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Medium Problems:

What is the ratio of states in the u.s to countries in central america?

what is the ratio of states in the united states to the provens in canada?


10/5 = 14/x answer:x = 7

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Hard Problems:

What is the ratio of the amount of countries in the world to cities in the world?
Answer: 196 To About 300,000!!!!!!!!


2/6 = 4/x answer: x = 12

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Pictures

http://www.teacherspayteachers.com/data/thumbnails/RatiosRatesProportionsJeopardyMathReview.ppt.04.jpg

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Videos

http://www.schooltube.com/video/c4642bf33d06414f88bc/Ratios-Introduction