Number+Level+5+No+8

__**Level 5 No 8- WALT find the given ratio**__

From softschools.com

A ratio is a comparison of two things. We might compare boys to girls, cars to trucks or hours asleep to hours awake.

Whatever we choose to compare can then be written as a ratio. There are three different forms.

A ratio can be written as ** a to b **, ** a : b  ****or **

Here are some examples:

1.) 4 boys and 5 girls would be written as 4 to 5, 4 : 5 or

2.) 3 parts yellow and 4 parts blue would be written as 3 to 4, 3 : 4, or

Ratios can be ** part-to-part, ** ** part-to-whole,  ** or ** whole-to-part. ** Let's take a look at what this means.

boys to girls

part-to-part

boys to the whole class

part-to-whole

class to the girls

whole-to-part


 * Example: **


 * Example: **


 * Example: **[[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img5.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img5.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img5.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img5.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]][[image:http://www.softschools.com/math/topics/images/what_is_a_ratio_img4.png]]

<span class="padd_cont2">1.) Write a ratio of triangles to squares. <span class="padd_cont3">4 : 7

<span class="padd_cont2">2.) Write a ratio of squares to triangles. <span class="padd_cont3">7 : 4

Notice that the order of the numbers depends on the order of what you want to compare.

<span class="padd_cont2">3.) Write a ratio of triangles to total shapes. <span class="padd_cont3">4 : 11

<span class="padd_cont2">4.) Write a ratio of total shapes to triangles. <span class="padd_cont3">11 : 4


 * Let's Review: **