Exploring Adding and Subtracting Rational Expressions

What is an equivalent ratio?

• A ratio that only scales down

• A ratio that names the same relationship

• A ratio that compares different relationships

• A ratio that only scales up

How can you find an equivalent ratio by scaling up?

• By multiplying both terms by the same number

• By dividing both terms by the same number

• By subtracting the same number from both terms

• By adding the same number to both terms

If you have a ratio of 6 cups of apple juice to 4 cups of cranberry juice, what is an equivalent ratio if you scale up by 2?

• 10 cups of apple juice to 5 cups of cranberry juice

• 12 cups of apple juice to 8 cups of cranberry juice

• 3 cups of apple juice to 2 cups of cranberry juice

• 8 cups of apple juice to 6 cups of cranberry juice

What is the equivalent ratio of 16 to 12 when scaled down by 4?

• 8 to 6

• 6 to 4

• 2 to 1

• 4 to 3

If the ratio of students to chaperones is 15 to 2, how many chaperones are needed for 60 students?

• 10

• 6

• 4

• 8

Micah earns 2 points for every 3 questions he answers correctly. How many points does he earn for answering 24 questions correctly?

• 12 points

• 20 points

• 16 points

• 18 points

If an 18-ounce bottle of soda contains 216 calories, how many calories are in 6 ounces?

• 54 calories

• 144 calories

• 72 calories

• 108 calories

How do you determine if two ratios are equivalent?

• By multiplying both terms by the same number

• By simplifying both ratios to their simplest forms

• By subtracting the same number from both terms

• By adding the same number to both terms

Are the ratios 1 to 2 and 6 to 12 equivalent?

• No, because they do not simplify to the same ratio

• No, because they are different numbers

• Yes, because they simplify to the same ratio

• Yes, because they are both even numbers

What is the simplest form of the ratio 24 to 18?

• 2 to 1

• 6 to 5

• 3 to 2

• 4 to 3