Unit 2 Review
2/3 × 3/5 =
2/5
What is the LCM of 4 and 10?
20
What is the greatest common factor of 63 and 21?
21
4 3/4 × 5 =
23 3/4
LCM (8, 12)
24
LCM 8, 3)
24
3/4 × 2 =
1 1/2
3/8 × 4 =
1 1/2
1/5 × 7 =
1 2/5
Altogether, Renee walks a combined 2 4/5 miles to and from the train each day. How long is the walk to the train?
1 2/5 miles
Gloria has 2 5/8 ounces of perfume. If she uses one third of it, how much will she have left?
1 3/4
The cafeteria sold 200 grilled cheese sandwiches, 100 tacos, and 150 grilled chicken salads. What is the ratio of grilled chicken salads sold to the total number of lunches sold?
1 to 3
2/7 × 1/4 =
1/14
Emi buys 14 balloons. Three are red, four are white, and the rest are blue. What is the ratio of blue balloons to the total number of balloons?
1/2
Andy carried 1/2 gallon of water on a hike. He drank 2/3 of the water. How much water did he drink?
1/3
Cameron cooks 3/4 lb of pasta. If she serves the pasta in three even-size bowls, about how much does she put in each bowl?
1/4 lb
3/8 × 1/3 =
1/8
1 2/3 × 6 =
10
GCF (10, 30)
10
Cheyenne drove 3,000 miles in 75 hours. At this rate, how long will it take her to drive 4,000 miles?
100 hr
Luisa ran 3 2/3 kilometers in 1/3 of an hour. If speed is distance over time, calculate Luisa's speed.
11 kph
GCF (24, 60)
12
What is the LCM of 4 and 6?
12
10 ÷ 4/5
12 1/2
3 1/6 × 4 =
12 2/3
Archie has 8 chapters of a book left to read. He reads 2/3 of a chapter each day. How many days does it take to finish reading the book?
12 days
Find the LCM of 3 and 5.
15
Slater's room is 5 meters long and 3 1/4 meters wide. What is the area of Slater's room?
16 1/4
The mechanic does 4 oil changes in 2 hours. How many oil changes can the mechanic do in 8 hours?
16 oil changes
The ratio of students with bikes to students with scooters in the school is 85:51. What is the greatest common factor that your could use to simplify this ratio?
17
LCM (9, 6)
18
Pierre is running 26 and 2/10 miles in the marathon. He has run 3/4 of the way. How far has he run?
19 13/20
We have 4 3/4 pounds of apples in each bag. If we have 4 bags, how many pounds of apples do we have in all?
19 pounds
The pancakes contain 1 cup of milk, 1 cup of flour, and 2 eggs. What is the ratio of milk to flour?
1:1
The movie multiplex has four bathrooms and 16 theaters. What is the bathroom to theater ratio?
1:4
The baby nursery has 2 nurses for every 10 babies. What is the nurse to baby ratio?
1:5
1 2/3 ÷ 5/6
2
Find the GCF of 16 and 6.
2
Find the GCF of 16, 18, and 30.
2
1 1/4 × 2 =
2 1/2
9/10 ÷ 2/5
2 1/4
A fruit salad recipe calls for 9 cups of berries and 6 cups of peaches. What is the ratio of peaches to berries?
2:3
The island has 600 bicycles and 900 people. What is the bicycle to person ratio?
2:3
There are 25 students in the class. Ten students have sports practice after school. What is the ratio of students that do have practice, to those that do not?
2:3
Find the GCF of 6 and 15.
3
GCF (12, 21)
3
3 ÷ 7/8
3 3/7
Olivia has 1 1/5 yards of fabric. She uses 5/8 of the fabric to make a shirt. How much fabric did she use?
3/4 yard
4/5 × 3/4 =
3/5
Felix bought 3/4 of a pound of American cheese at the deli. She used 1/2 of the cheese to make sandwiches. How much cheese did she use?
3/8
32/96 of the parents in the PTA wanted a bake sale instead of a car wash. What is the greatest common factor that you could use to simplify this fraction?
32
2/3 × 6 =
4
Find the GCF of 20, 36, and 48.
4
What is the GCF of 8 and 12?
4
3/4 ÷ 1/6
4 1/2
3 2/5 ÷ 7/10
4 6/7
1/5 ÷ 1/4
4/5
Find the LCM of 14 and 6.
42
Find the GCF of 10 and 25.
5
Irma has 5/6 yard of ribbon. She cuts it into 1/6 yard pieces. How many pieces of ribbon does she have?
5
The factory makes 400 cars per day. If the workday is eight hours long? what is the hourly rate at which cars are produced?
50 cars/hr
What is the GCF of 6 and 12?
6
We have 10 gallons of gas in the car. We use 1 5/8 gallons each hour. How many hours of gas do we have?
6 2/13 hours
4 ÷ 3/5
6 2/3
Find the LCM of 7 and 9.
63
Lin has 8 green apples and 2 red apples. If he slices the green apples in eights, how many apples slices will he have?
64 slices
Jesse has 5 and 3/4 dozen eggs. How many eggs does Jesse have?
69
What is the LCM of 3 and 23?
69
4 2/3 ÷ 2/3
7
Twenty-eight girls and 35 boys signed up for the team challenge. Each team needs to have an equal number of girls and boys. What is the greatest number of teams possible?
7
A potter makes 6 bowls in 3 hours. How long would it take the potter to make 14 bowls?
7 hours
1/3 ÷ 3/8
8/9
What is the least common multiple of 7 and 12?
84
2 1/4 ÷ 1/4
9
6 ÷ 2/3
9
The area of the desk is 1 4/5 square meters. The length of the desk is 2 meters. What is the width of the desk?
9/10
The diner sells bagels for $0.75 each. The bagel shop sells 1 dozen for $7.00. Which is the better buy?
dozen for $7.00
The biology class has a lab every 4 days. The earth science class has a lab every 3 days. On which day do both classes have lab?
every 12 days
Dan rides his bike to town every eighth day. Sam walks to town every third day. On which days are they likely to meet in town?
every 24 days
Every 10 years the alumni have a reunion. Every 2 years the alumni have a soccer game. How often do the reunion and the game fall in the same year?
once every 10 years
The fisherman is selling salmon for $7.99/lb. The supermarket has 2 lb packages of salmon for $14.98. Which is a better buy?
supermarket