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Ratio and Proportion

Reinforcement

When you think of ratio what comes in your mind?

Ratio

• A ratio compares values

• a ratio indicates how many times one number contains another

• Use the " : " to separate the values

Multiple Select

So 3:1 shows

• there are 3 blue boxes and one yellow box

• the proportion for blue is greater than yellow

• we can write in a fraction as 1/3

• there are total 4 parts

A ratio can be scaled up!

How did we do that?

Can you think of any example where we have scaled down the proportion?

Lets start with our assessment then!