Add/Subtract Fractions
Simplify
Greatest Common Factor
Least Common Multiple
Word Problems
100

Solve.

1/4 + 1/2

3/4

100

Simplify.

3/12

1/4

100
What is the greatest common factor of 12 and 15
3
100
What is the least common multiple of 3 and 7?
21
100

Julia bought 3/5 of a yard of red ribbon and 10/15 of a yard of purple ribbon. Which piece of ribbon was longer? By how much?

Purple Ribbon. 1/15 of a yard longer

200

Solve. 

3/5 - 1/3

4/15

200

Simplify.


8/24

1/3

200
What is the greatest common factor of 24 and 20?
4
200
What is the least common multiple of 4 and 9?
36
200

Anthony goes running three times a week. This week, he ran 3/5 of a mile on Monday, 2/3 of a mile on Wednesday, and 3/4 of a mile on Friday. How far did Anthony run this week?

121/60 or 1/60 miles

300
Solve.

5/8 + 2/6

23/24

300

Simplify.

36/45

4/5

300
What is the greatest factor of 16 and 36?
4
300
What is the least common multiple of 2, 3, and 5?
30
300
On Monday, Leah spent 5/6 of an hour working on her homework, on Tuesday, she spent 3/4 of an hour on her homework, and on Wednesday she finished her homework in 5/8 of an hour.


On which day did Leah spend the least amount of time on her homework?

Wednesday
400

Solve. 

2/3 - 1/2

2 1/2

400

Simplify.

21/28

3/4

400
What is the great common factor of 50, 35, and 15?
5
400
What is the least common multiple of 20 and 12?
60
400

On Monday, Leah spent 5/6 of an hour working on her homework, on Tuesday, she spent 3/4 of an hour on her homework, and on Wednesday she finished her homework in 5/8 of an hour.

How much time did Leah spend doing homework on Monday, Tuesday and Wednesday in all?

53/24 or 5/24 hours

500

Solve. 

3 7/8 + 2 9/10

71/40  or  31/40

500

Simplify.

27/18

3/2 or 1 1/2

500
What is the greatest common factor of 64 and 80?
16
500
What is the least common multiple of 21 and 24?
168
500

On Monday, Kevin spent 4/5 of an hour working on his homework, on Tuesday he spent 2/3 of an hour on his homework, and on Wednesday he finished his homework in 7/10 of an hour. How long did Kevin spend doing homework on Monday, Tuesday and Wednesday in all?

65/30 or 2 5/30 hours or 2 1/6 hours