Fractions

Adding Fractions

100

1/4 + 2/4

3/4

200

3/8+4/8

7/8

300

1 2/5 +3 2/5

4 4/5

400

2 5/7 + 3 3/7

6 1/7

500

4 4/8  + 5 4/8

10

Subtracting Fractions

100

3/9-1/9

2/9

200

14/20 - 6/20

8/20 or 2/5

300

10/14 - 5/14 - 1/14

4/14 or 2/7

400

20/25 - 10/25 - 5/25 

5/25 or 1/5

500

10/30 - 1/30 - 2/30 - 0/30 

7/30

Decomposing into Unit Fractions

100

3/9

1/9+1/9+1/9

200

5/16

1/16+1/16+1/16+1/16+1/16

300

10/40

1/40+1/+40+1/40+1/40+1/40+1/40+1/40+1/40+1/40+1/40

400

4/16

1/16+1/16+1/16+1/16

500

12/13

12/13+ 12/13+  12/13+ 12/13+ 12/13+ 12/13+ 12/13+ 12/13+ 12/13+ 12/13+ 12/13+ 12/13

Final Jeopardy

100

Tom has to read 2 books for school. Tom read 3 /4 of the first book on Saturday, and 3/4 of the second book on Friday. What total fraction of these two books has Tom read?

6/4 or 1 2/4 or 1 1/2