Word Problems
Adding & Subtracting Fractions with Unlike Denominators
Adding Mixed Numbers with Unlike Denominators
Subtracting Mixed Numbers with Unlike Denominators
Vocabulary for Working with Fractions
100

Miss G. is making a cake.  The recipe for the cake calls for 1 2/5 cup sugar.  The icing recipe needs 2 2/5 cup sugar.  How much sugar does Miss G need?

3 4/5 cup

100
1/4 + 5/8
7/8
100
4 1/6 + 9 2/3
13 5/6
100

7 3/4 - 1 1/12

6 8/12

100

This type of number has a whole number part and a fraction part.

Mixed Number

200

Aaron walks 2 1/2 miles to school everyday.  Angie walks 1 1/4 miles to school.  How much further does Aaron walk than Angie?

1 1/4 mile

200
2/5 + 1/2
9/10
200
8 1/4 + 8 1/2
16 3/4
200
11 1/2- 7 3/8
4 1/8
200

12/7 is an example of an _______________. This is not in the simplest form!

improper fraction

300

Mery was planting a garden.  She planted 1/2 the garden with daisies and 1/3 with roses.  How much of the garden was planted?

5/6 of the garden was planted

300
7/12 - 1/2
1/12
300

8 1/6 + 4 1/2

12 3/6

300
17 8/9 - 8 2/3
9 2/9
300

Fractions must have the same _________ before adding or subtracting. (Hint: This is the 1st step when adding or subtracting fractions)

denominator

400

On our vacation to the beach, we spent 4 3/4 hours at the pool and 3 1/2 hours at the beach.  How much more time were we at the pool?

2 1/4 hours

400

5/6 - 2/12

8/12

400

8 1/12 + 2 2/3

10 9/12

400
7 4/5 - 2 9/10
4 9/10
400

Use __________ fractions after finding the common denominator before adding or subtracting. (Hint: This is the 2nd step when adding or subtracting fractions)

equivalent

500

Jadiel spent 4 1/3 hours at the park.  Alex spent 3 1/2 hours at the park.  How much longer did Jadiel spend at the park compared to Alex?

5/6 of an hour

500

3/5 - 1/8

19/40

500
10 5/6 + 8 2/12
19
500

9 1/2 - 5 8/12

3 10/12

500

What is the most common activity that requires fractions?

Cooking or measurement 

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