Ratios

The video tutorial explains the concept of ratios as a comparison of two quantities by division. It provides examples using boys and girls in a room and cupcakes baked by Graham. The tutorial emphasizes the importance of the order in which ratios are presented and demonstrates how to simplify ratios. It concludes with a discussion on the ratio of chocolate cupcakes to the total number of cupcakes.

What is a ratio?

• A comparison of two quantities by multiplication

• A comparison of two quantities by division

• A comparison of two quantities by addition

• A comparison of two quantities by subtraction

How can the ratio of 6 chocolate cupcakes to 18 vanilla cupcakes be simplified?

• 1 to 3

• 3 to 1

• 1 to 2

• 2 to 3

What is the simplified ratio of vanilla cupcakes to chocolate cupcakes?

• 1 to 3

• 3 to 1

• 2 to 1

• 1 to 2

What is the ratio of chocolate cupcakes to all cupcakes baked?

• 1 to 3

• 1 to 5

• 1 to 4

• 1 to 2

If Graham baked 24 cupcakes in total, how many were chocolate if the ratio of chocolate to total cupcakes is 1 to 4?

• 12

• 4

• 8

• 6