Understanding Proportions and Equivalent Fractions

What is a proportion?

• A comparison of two numbers by division

• An equation stating that two ratios are equal

• A method to solve equations

• A type of fraction

How can you create an equivalent fraction?

• By multiplying or dividing both the numerator and the denominator by the same number

• By subtracting the same number from both the numerator and the denominator

• By changing the numerator to zero

• By adding the same number to both the numerator and the denominator

If you have a fraction 2/3, what is an equivalent fraction if you multiply both the numerator and the denominator by 2?

• 4/6

• 2/6

• 3/4

• 6/4

In the word problem, what is the ratio of boys to girls at Jamie's birthday party?

• 4 to 3

• 3 to 4

• 15 to 20

• 20 to 15

How many girls attended Jamie's birthday party if there were 15 boys?

• 15

• 18

• 20

• 25