What is a ratio?
Ratios, Unit Rates, Proportions

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•
Mathematics
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.
2.
FLASHCARD QUESTION
Front
How do you write a ratio as a fraction?
Back
To write a ratio as a fraction, place the first quantity over the second quantity. For example, the ratio 5 to 3 can be written as 5/3.
3.
FLASHCARD QUESTION
Front
What is a unit rate?
Back
A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.
4.
FLASHCARD QUESTION
Front
How do you find the unit rate from a total distance and total gallons of gas?
Back
To find the unit rate, divide the total distance by the total gallons of gas. For example, if 92 miles are driven using 4 gallons, the unit rate is 92/4 = 23 miles per gallon.
5.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal. For example, if a/b = c/d, then a, b, c, and d are in proportion.
6.
FLASHCARD QUESTION
Front
How can you solve a proportion?
Back
To solve a proportion, cross-multiply the terms and then solve for the unknown variable. For example, if 5/3 = x/15, then 5*15 = 3*x.
7.
FLASHCARD QUESTION
Front
What does it mean to simplify a ratio?
Back
Simplifying a ratio means reducing it to its simplest form by dividing both quantities by their greatest common factor.
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