Understanding Equivalent Ratios

What is the first step in finding the missing value in an equivalent ratio?

• Use division to find the missing number

• Find the connection between the two sets of ratios

• Multiply the numbers by a random factor

• Guess the missing value

In the example where the ratio is 10 to 30, what operation is used to find the connection?

• Division

• Multiplication

• Subtraction

• Addition

If you have a ratio of 8 to 4, what operation would you use to find the equivalent ratio?

• Subtract 4

• Add 4

• Divide by 2

• Multiply by 2

How do you find the missing value in the ratio 2 to 9 and 8 to X?

• Multiply 9 by 2

• Divide 9 by 4

• Multiply 9 by 4

• Add 4 to 9

What should you remember about ratios when solving for missing values?

• Ratios are unrelated to fractions

• You can use any operation to find the missing value

• Ratios are similar to fractions

• Only the first number in a ratio matters