Razón Math

Mathematics

Ratio

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Worksheet

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Ratio

¿What it is?

It's the comparation between two quantities of the same kind. This quantities are compared using division. In other words, the ratio tell us how much one quantity is conteined in another

How can undeRstand this?

Learning situation

How to interpret ratio?

We can do it by 3 forms: Example: in the classroom there are 3 children with red cap, and 6 children with yellow cap. What is the ratio between red cap children and yellow cap children?

Colon form a : b b ≠0

Division form a/b b ≠0

Written form : a to b

3 / 6

3 : 6

3 to 6

Learning situation

How to interpret ratio?

Example : Alejandro has 5 strawberries and 9 mangoes. What is the ratio of mangoes to strawberries?

Division form a (antecedent) b (consequent) b ≠0

Colon forma: b b ≠0

Written forma to b

9 / 5

9 : 5

9 to 5

Calculation of ratio

Steps to solve it

Let's begin

Calculation of ratios

Example: if 15 red apples and 20 green apples are needed to make a cake, let us calculate the ratio of red apples and gren apples used inthe recipe.

Step 3 Therefore, the ratio of red apples to green apples can bevexpressed as 3:4

Step 2 Write it in the fraction : 15/20 and simplify to 3/4.

Step 1 Find the quantities, in this case 15 and 20.

Conclution

The ratio is used to compare two or more numbers

Can be expressed as: a to b a : b b ≠0 a / b

Finish it

Congratulations!

Now you know what ratio is.

End

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