Simple Addition
Simple Subtraction
Mixed Numbers
Story Problems
100

1/2 + 1/4 =

Answer:

3/4

How to solve:

1/2 + 1/4 = 2/4 + 1/4 = 3/4

100

7/8 - 1/2 =

Answer: 

3/8

How to Solve: 

7/8 - 1/2 = 7/8 - 4/8 = 3/8


100

1 7/10 + 3 3/5 =

Answer:  

5 3/10

How to Solve: 

1 7/10 + 3 3/5 = 1 7/10 + 3 6/10 = 4 13/10

Simplify: 

4 13/10 = 5 3/10

100

Mrs. Butera rode her bike

4 5/8

  miles on Saturday and

4 1/2

 miles on Sunday.  How many miles did she ride in all?

Answer: 

9 1/8

How to solve:

4 5/8 + 4 1/2 = 4 5/8 + 4 4/8 = 8 9/8 = 9 1/8

200

1/10 + 1/2 = 

Answer: 

3/5

How to Solve: 

1/10 + 1/2 = 1/10 + 5/10 = 6/10

Simplify: 

6/10 = 3/5

200

11/12 - 1/6 = 

Answer: 

3/4

How to Solve: 

11/12 - 1/6 = 11/12 - 2/12 = 9/12

Simplify: 

9/12 = 3/4


200

2 1/3 + 1 5/6 = 

Answer: 

4 1/6

How to Solve: 

2 1/3 + 1 5/6 = 2 2/6 + 1 5/6 = 3 7/6

Simplify: 

3 7/6 = 4 1/6


200

Parker walks 2/5 mile from her house to the mailbox.  Then she walks 1/3 of a mile to the park.  What is the total distance Parker walks?

Answer: 

11/15

How to solve:

2/5 + 1/3 = 6/15 + 5/15 = 11/15

300

1/2 + 2/3 = 

Answer: 

1 1/6

How to Solve: 

1/2 + 2/3 = 3/6 + 4/6 = 7/6

Simplify: 

7/6 = 1 1/6

300

2 3/4 - 1/2= 

Answer: 

2 1/4

How to Solve:

2 3/4 - 1/2 = 2 3/4 - 2/4

= 2 1/4



300

10 3/4 - 3 1/2 = 

Answer: 

7 1/4

How to Solve: 

10 3/4 - 3 1/2

10 - 3 = 7, and 3/4 - 1/2 = 1/4, so I got 

7 1/4

300

Nora helps weigh kittens at the vet.  The heaviest kitten weights

3 1/4

 pounds.  The lightest kitten weights only

1 3/4

 pounds.  How much more does the larger kitten weigh?

Answer: 

1 1/2

How to solve:

*Change mixed numbers to improper fractions

3 1/4 - 1 3/4 = 13/4 - 7/4

Then...Subtract, Simplify

13/4 - 7/4 = 6/4 = 1 2/4 = 1 1/2

400

6/7 + 2/3 = 

Answer: 

1 11/21

How to Solve: 

6/7 + 2/3 = 18/21 + 14/21 = 32/21

Simplify: 

32 / 21 = 1 11/21

400

5/6 - 7/9= 

Answer: 

1/18

How to Solve: 

5/6 - 7/9 = 15/18 - 14/18 = 1/18



400

5 3/4 - 2 5/12 = 

Answer: 

3 1/3

How to Solve: 

5 3/4 - 2 5/12 = 5 9/12 - 2 5/12

= 3 4/12

Simplify: 

3 4/12 = 3 1/3

400

Grady jumped off the swing

6 2/3

 feet in a contest.  Toby jumped

4 3/4

 feet.  How much farther did Grady jump than Toby?

Answer: 

1 11/12

How to solve:

Change mixed numbers to improper fractions, find common denominator, subtract, simplify!

6 2/3 - 4 3/4 = 20/3 - 19/4

20/3 - 19/4 = 80/12 - 57/12

(80-57)/12 = 23/12

23/12 = 1 11/12

500

2/3 + 4/11 =

Answer: 

1 1/33

How to Solve: 

2/3 + 4/11 = 22/33 + 12/33 = 34/33

Simplify: 

34/33 = 1 1/33

500

7/10 - 3/11 = 

Answer: 

47/110

How to Solve: 

7/10 - 3/11 = 77/110 - 30/110 = 47/110


500

8 2/3 - 1 7/9 = 

Answer: 

6 8/9

How I solved it:

**I know that 7/9 is bigger than 2/3, so I can't subtract the fractions without borrowing from the whole number or changing them to improper fractions...so I changed the fractions to improper fractions first to get rid of the whole numbers.  Then I could find a common denominator, subtract,  and simplify:

1. Get rid of mixed numbers

8 2/3 - 1 7/9 = 26/3 - 16/9

2. Common Denominator

26/3 - 16/9= 78/9 - 16/9

3. Subtract

(78-16)/9 = 62/9

4. Simplify

62/9 = 6 8/9





500

Mia ran

11 5/12

 laps during PE.  Alexis ran

9 7/8

 laps.  How many more laps did Mia run than Alexis? 

Answer: 

1 13/24

How to solve:

Convert mixed numbers, find common denominator, subtract, then simplify!

11 5/12 - 9 7/8 = 137/12 - 79/8

274/24 - 237/24= 37/24 

37/24 = 1 13/24



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