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Lesson 7: Adding and Subtracting Fractions with Number Lines



 1. 

Use number lines to add or subtract for Questions 1 - 4.

1/5 + 1/2
a.
2/10
b.
2/7
c.
7/10
d.
7/7
 

 2. 

5/8 + 1/4
a.
7/8
b.
6/12
c.
1/2
d.
6/8
 

 3. 

7/6 - 1/4
a.
11/12
b.
6/4
c.
6/24
d.
5/2
 

 4. 

7/8 - 1/2
a.
6/6
b.
6/10
c.
6/15
d.
3/8
 

 5. 

Jody made brownies and ate 1/4 of them.  James ate another 3/7 of the brownies.
What fraction of the brownies were eaten?
a.
4/11
b.
19/28
c.
5/28
d.
3/5
 

 6. 

What fraction of the brownies are left?
a.
9/28
b.
1/4
c.
2/5
d.
1/2
 

 7. 

Ronnie practiced piano for 25 minutes on Sunday and for 1/4 of an hour on Monday. What fraction of an hour did he practice piano for in total?
a.
1/3 of an hour
b.
2/3 of an hour
c.
1/2 of an hour
d.
3/4 of an hour
 

 8. 

One hour before the game started 1/8 of the stadium was filled. In the next 30 minutes another 1/4 of the stadium was filled.  What fraction of the stadium was filled 30 minutes before the game started?
a.
3/8
b.
1/2
c.
2/3
d.
1/5
 

 9. 

Kim started out with 3/5 of a box of crackers.  She ate 1/3 more.  What fraction of the box remains?
a.
14/15
b.
1/15
c.
1/5
d.
2/3
 

 10. 

During one year, a music store sold 6/8 of the total number of CDs it had in stock, 2/6 of the CDs were then returned. What fraction of the total number of CDs did the store make a profit from?
a.
5/12
b.
6/8
c.
2/6
d.
18/24
 



 
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