Ratio

What is a Ratio? A ratio is a comparison of to numbers, by dividing,that have the same unit. Lets say you were to do a ratio of red marbles to green marbles. There was 3 red and 4 green.What would be the ratio of red marbles to green marbles. The ratio of red marbles to green marbles would be 3:4 There are three ways to write a ratio.



What is Proportion? A proportion is where you have a fraction and another fraction that is missing a part and you have to solve for that part. The answer would be 9 because 9 times 3 equals 27 and 3 times 3 equals 9. What is Value? Value means **lowest** term or form. Lets say you have 30/60 which would equal to 1/2 because you are **dividing** **both** numbers by 30 and that is how you get your answer.

How do you find **unit rate**? A rate is a special ratio in which **two** terms are in **different** units.

Tape Diagram

Comparing Ratios You are either making your ratio bigger or smaller.