Simplifying a Ratio

What is the first step in simplifying a ratio?

• Add the numbers together

• Find the greatest common factor

• Multiply the numbers

• Subtract the smaller number from the larger one

What is the simplified form of the ratio 9:21?

• 21:9

• 9:3

• 3:7

• 7:3

How can you write the ratio 3:7 using a different format?

• 3 times 7

• 3 minus 7

• 3 plus 7

• 3 to 7

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What is the greatest common factor of 30 and 6?

• 6

• 1

• 5

• 3

If a ratio's greatest common factor is 1, what does that mean?

• The ratio is already in simplest form

• The ratio needs to be multiplied

• The ratio is incorrect

• The ratio needs to be divided