ratios-basics-what-is-a-ratio

Basic information on ratios and how to write them three different ways.

Hello welcome to MooMooMath where we upload anew Math video everyday

In this video I would like to talk about ratios

Ratio is a comparison of two or more things

You may want to think of a ratio as a relationship of two numbers by division

For example if you have 5 pets and three are dogs and two of the pets are cats you could write the ratio of cats to dogs as 3/2 or 3 to 2 or 3 :2

This is an example of a part to part ratio

You have 3 dogs for every 2 cats

Also notice you have three ways to write a ratio

Fraction form 3/2

Colon form 3:2

And using to 3 to 2

Ratios can also be part to total

For example you have 5 pets total, 2 cats and 3 dogs

You can write the ratio of dogs to the total number of pets,

3 to 5

3:5

3/5

How would you write a ratio of cars and planes of your friendly neighborhood billionaire?

Mr. Billionaire has 12 cars and 1 plane.

The ratio of planes to cars could be written as 1 to 12

1:12 or 1/12

The ratio of cars to the total number of vehicles would be 12 to 13 because 12 + 1 =13 which is your total and you have 12 cars.

It can also be written as 12 : 13 or 12/13

In summary

Ratios can be written at least three different ways and still mean the same thing

They can be written

Using to 3 to 5

With a colon 3:5

Or as a fraction 3/5

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https://www.youtube.com/watch?v=f3bsg8gaSbw

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Tagged under: ratios,numbers,math,6 rpa-1,6th grade math,writing ratios,3 ways write ratios,middle school math

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