Unit 1 - Fractions

Adding

100

6/7 + 4/7 = 

10/7    or   1 3/7

200

1 2/3 + 5 5/3 = 

6 7/3   or   8 1/3

300

5 5/6 + 4 2/3 = 

9 27/18  or  10 9/18  or   

9 9/6  or  10 3/6

400

2 3/7 + 3 1/2 =

5 13/14

500

5 2/3 + 7 1/2 = 

12 7/6  or   13 1/6

Subtracting

100

10/7 - 4/7 = 

6/7

200

4 5/6 - 2 2/6 =

2 3/6

300

4 2/5 - 1 1/7 =

3 9/35

400

9 5/8 - 4 1/4 = 

5 3/8   or   5 12/32

500

10 1/4 - 2 2/3 =

7 7/12

Word Problems

100

Tina is making a batch of cookies and muffins. Her muffins recipe calls for 3/8 cups of flour. Her cookies recipe calls for 1/4 cups of flour. How much flour does Tina need to make both batches? (show your equation/work)

1/4+3/8 = 5/8 cups

200

Betsy eats 4/5 of her favorite Hawaiian pizza. Gina eats 5/9 of her favorite Hamburger pizza. How much pizza did Gina and Betsy eat all together? (write an equation to help you solve this)

4/5 + 5/9 = 61/45  or 1 16/45 pizzas

300

Jimmy have 6 1/2 cups of juice. He gave his buddy 3/4 cups. How much juice does he have left to drink?

6 1/2 - 3/4 = 5 3/4 cups

400

Greg has 1 3/4 of a candy bar. He wants to share some with his friend but he still wants to have 5/6 of the candy bar left to eat after he shares. How much of the candy bar should Greg give to his friend? (show the equation that you use to solve this)

1 3/4 - 5/6 = 11/12 of a candy bar

500

The kiddie pool had 20 gallons of water in it. When the first group of kids jumped in the pool 8 1/2 gallons splashed out of the pool. The kids took their water bottles and poured 5 4/5 gallons back into the pool. How much water is in the pool now?

20 - 8 1/2 = 11 1/2                        11 1/2 + 5 4/5 = 17 3/10 gallons

Comparing Fractions

100

Determine which fraction is greater than the other:

5/8 or 7/8

7/8

200

Determine which mixed number is greater than the other:

4 2/5 or 5 2/5

5 2/5

300

Determine which fraction is greater:

1/2 or 3/8

1/2

400

Determine which fraction is greater:

4/5 or 3/4

4/5

500

Determine which fraction is greater:

49/50 or 49/51

49/50

Finding Equivalent Fractions

100

Find a common denominator for 1/2

2/4    3/6    4/5    10/20

200

Find a common denominator for 2/3

4/6    6/9    8/12    10/15

300

Find a common denominator for 2/5

4/10    6/15    8/20    20/50

400

Find two common denominators for 3/7

6/14    9/21    12/28    15/35

500

Find two common denominators for 8/9

16/18    24/27    32/36    40/45    80/90