Understanding Ratios and Rates

What is a ratio?

• A comparison of two numbers by addition.

• A comparison of two numbers by subtraction.

• A comparison of two numbers by multiplication.

• A comparison of two numbers by division.

What is the main difference between ratios and fractions?

• Ratios are only used for whole numbers, while fractions can be parts of numbers.

• Ratios compare different things, while fractions represent parts of a whole.

• Ratios are always larger than fractions.

• Fractions are always larger than ratios.

If a picnic has a ratio of 1 sandwich to 2 people, what does the number '1' represent?

• The total number of people.

• The number of sandwiches.

• The number of people who don't eat.

• The total number of items.

How can the ratio "1 to 2" also be written?

• 1+2

• 1-2

• 1:2

• 1x2

A fruit stand sells 5 apples for every 3 oranges. What is the ratio of apples to oranges?

• 3:5

• 5:3

• 5+3

• 5-3

A cookie recipe uses 2 cups of flour for every 1 cup of sugar. What is the ratio of flour to sugar?

• 1:2

• 2:1

• 2+1

• 2-1

What is a rate?

• A relationship between two numbers.

• A ratio that usually involves a period of time.

• A fraction where the bottom number is always 1.

• The total amount of something.

Car A travels 120 miles in 3 hours. Car B travels 150 miles in 5 hours. Which car is going faster?

• Car A is faster (40 miles per hour).

• Car B is faster (40 miles per hour).

• Car B is faster (150 miles per hour).

• Both cars are going the same speed.