Fraction Review

Adding/ Subtracting

100

3/10 + 4/10 + 5/10 = ?

12/10 or 1 2/10

200

53/100- 27/100= ?

26/100

300

8/12 + ___ = 1

4/12

400

1/2 + 3/4= ?

5/4 or 1 1/4

Because you must change 1/2 to 2/4. Therefore your problem looks like this: 

2/4 + 3/4 = 5/4

500

6/10+ 4/5= ?

16/10 or 1 6/10

This is because you had to change 4/5 to 8/10. 

Therefore your equation looks like this: 

6/10 + 8/10=  16/10

Adding/ Subtracting

100

1- 5/8=

3/8

200

7/8- 3/8=

4/8

300

5- 2/5

4 3/5

400

3 - 1/4 = ?

2 3/4

500

29 - 9/12

28 3/12

Comparing Fractions

100

Compare the following fractions: 

4/5       6/5

4/5 < 6/5

200

5/12      6/10

5/12 < 6/10

300

5/8   5/10

5/8 > 5/10

400

5/6   3/4

5/6 > 3/4

500

8/3       16/6

8/3  =  16/6

Word Problems

100

Mrs. Jones had 1 4/8 pizzas left after a party. After giving some to Gary, she had 7/8 pizza left. What fraction of a pizza did she give Gary?

She gave 5/8 of the pizza to Gary.

You must change 1 4/8 to 12/8. Therefore the equation looks like this: 

12/8- ____= 7/8

200

A baker had 2 pans of corn bread. He served 1 1/4 pans. What fraction of a pan was left?

3/4 of the pan is left. 

You had to change 2 to 8/4 and 1 1/4 to 5/4. Therefore your equation looks like this: 

8/4- 5/4= 3/4 

300

Ally’s little sister wanted to help her make some oatmeal cookies. First, she put 5/8 cup of oatmeal in the bowl. Next, she added another 5/8 cup of oatmeal. Finally, she added another 5/8 cup of oatmeal. How much oatmeal did she put in the bowl?

She put 15/8 cups of oatmeal in the bowl or 1 7/8 cups.

400

Marcia baked 2 pans of brownies. Her family ate 1 and 5/6 pans. What fraction of a pan of brownies was left?

7/6 or 1 1/6 pan of brownies was left. 

12/6 - 5/6 = 7/6 or 1 1/6

500

Joanie wrote a letter that was 1 1/4 pages long. Katie wrote a letter that was 3/4 page shorter than Joanie’s letter. How long was Katie’s letter?

Katie's letter was 2/4 pages long or 1/2. 

5/4 - 3/4 = 2/4 

Equivalent Fractions

100

3/4 = __/8

3 fourths = how many eighths?

3/4 = 6/8

200

1/2 = ___/12

One half = how many twelfths? 

1/2 = 6/12

300

1/4 = 

___ eighths 

___ twelfths 

___ sixteenths 

1/4 = 

2 eighths 

3 twelfths 

4 sixteenths

400

Look at this list of fractions. Which fractions are equal?

3/4            12/24

1/2            3/15

1/3            6/8

3/4 = 6/8

1/2 = 12/24 

1/3 = 3/15 

500

Look at the following fractions. Which fractions are equivalent?

3/4      3/12

4/5      9/12

8/10     1/4

3/4 = 9/12 

4/5 = 8/10 

1/4 = 3/12