Adding and Subtracting Mixed Numbers

Improper Fractions

100

Write 7/3 as a mixed number

2 1/3

200

Write as mixed number: 38/7

5  3/7

300

Write as mixed number: 17/5

3 2/5

400

Write as mixed number: 33/4

8 1/4

500

A capybara is the world's larges rodent. It can grow to be 4/3 m long. Which mixed number represents the length of the capybara?

1  1/3 m

Mixed Numbers

100

Write as an improper fraction: 3 1/11

34/11

200

Write as an improper fraction: 1 1/8

9/8

300

Write as an improper fraction: 2 2/3

8/3

400

Write as an improper fraction: 5 3/5

28/5

500

Diego said that 9/4 and 1 1/4 are equivalent. Is he right? 

no, because 1 1/4 as an improper fraction equals 5/4. That is not equal to 9/4

Adding Mixed Numbers

100

1 7/8 + 1 1/4 =

3 1/8

200

3 1/6 + 5 2/3 =

8 5/6

300

4 1/10 + 6 1/2 =

10 3/5

400

Arnie skated 1 3/4 miles from home to the lake, then went 1 1/3 miles around the lake, and then back home. How many miles did he skate?

4 5/6

500

(This is actually subtraction)

The length of a curly ribbon is 23 1/2 inches. It can be stretched straight, reaching 35 1/4 inches long. What is the difference between the straight and curly ribbon lengths?

11 3/4 inches

Subtracting Mixed Numbers

100

8 1/4 - 2 7/8 =

5 3/8

200

6 1/3 - 5 2/3 =

2/3

300

9 1/2 - 6 3/4 =

2 3/4

400

The average weight of a basketball is 21 1/10 ounces. The average weight of a baseball is 5 1/4 ounces. How many more ounces does the basketball weigh?

15 17/20 ounces

500

John bought 3 apples. He ate 1 4/7 of the apples. How many apples does he have now?

1 3/7 apples

multi-step word problems

100

Niki made 10 pizzas. One of her friends ate 3 1/4 of the pizzas and Niki ate 4 7/8. How much pizza was left? 

1 7/8 pizzas were left

200

Amanda, Raquel, and Jasmine had a contest to see who could eat the most marshmallows. Amanda ate 9 1/2, Raquel ate 10 2/3, and Jasmine ate 4 1/4. How many more marshmallows did Amanda and Jasmine eat than Raquel?

3 1/12

300

Mason and Demar were making a lot of cookies. Mason has 2 8/12 cups of flour. Demar has 1 3/12 cups of flour. If the recipe calls for 4 cups of flour, how many more cups do they need to have enough?

1/12 cups of flour

400

Mrs. Jones' class has a math test on Friday. 1/5 of the test is on simplifying fractions, 4/10 is on adding fractions, and the rest is on subtracting fractions. How much of the test is on subtracting fractions? Simplify.

2/5 

500

Diana is walking 12 dogs. 2/4 of the dogs stop suddenly to sniff a flag pole. 2/8 try to run away when pigeons fly nearby. The rest of the dogs were perfectly well behaved. How many of the dogs were well behaved?  (Note: don't simplify. Think about how many DOGS out of the 12 you got for your answer)

3 dogs (3/12 were well behaved)