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Writing Ratios
Writing Ratios
A ratio is a comparison of 2 or more quantities.
You can write a ratio 3 ways. (1:2, 1/2, 1 to 2 )
There are part-to-part ratios and part-to-whole ratios
Equivalent Ratios
Equivalent Ratios
You can find equivalent ratios by multiplying or dividing each part by the same number.
Two ratios are equivalent if they simplify to the same ratio.
Finding Equivalent Ratios
Finding Equivalent Ratios
Are Two ratios Equivalent?
Are Two ratios Equivalent?
Double Number Lines
Double Number Lines
You can use double number lines to help you solve ratio problems
Ratio Tables and Graphs
Ratio Tables and Graphs
You can also use ratio tables to help you solve problems with equivalent ratios.
You can make a graph of equivalent ratio tables. These equivalent ratios will form a straight diagonal line when plotted on a coordinate plane.
Completing Ratio Tables
Completing Ratio Tables
Graphing from a Ratio Table
Graphing from a Ratio Table
Unit Rate
Unit Rate
A unit rate means a rate for one of something. We write this as a ratio with a denominator of 1.
You can find the Unit Rate by dividing by the denominator (when you set it up like a fraction)
Unit Rate can help you compare ratios and rates.
Finding Unit Rate
Finding Unit Rate
Comparing Unit Rates
Comparing Unit Rates
Extra Practice
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