ADD FRACTIONS, SUBTRACT FRACTIONS
PROBLEMS 2
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11. Subtract these mixed units.
| 11. a) | 8 hours | b) 8 hours 20 minutes | |
| 11. a) − | 3 hours 50 minutes | − 3 hours 50 minutes | |
| 11. a) − 4 hours 10 minutes | 11. b) − 4 hours 30 minutes | ||
| 11. c) | 7 feet | d) 7 feet 14 inches | |
| 11. c) − | 4 feet 11 inches | − 4 feet 11 inches | |
| 11. a) − 2 feet 1 inch | 11. b) − 2 feet 5 inches | ||
12. a) 6 1 |
2 3 |
= 4 | 1 3 |
b) 8 − 3 | 3 4 |
= 4 | 1 4 |
||
| 12. c) 51 |
5 8 |
= 3 | 3 8 |
d) 94 |
1 5 |
= 4 | 4 5 |
||
13. Each whole number has been reduced by 1. What is the missing
13. numerator?
| 13. a) 5 | 2 5 |
= 4 | 7 5 |
b) 6 | 3 8 |
= 5 | 11 8 |
c) 9 | 1 3 |
= 8 | 4 3 |
d) 8 | 5 9 |
= 7 | 14 9 |
14. Subtract.
| 14. a) 5 | 1 3 |
2 |
2 3 |
= 2 | 2 3 |
b) 6 | 1 4 |
1 |
3 4 |
= 4½ | c) 9 | 3 8 |
5 |
7 8 |
= 3½ |
| 13. d) 7 | 3 10 |
6 |
9 10 |
= | 2 5 |
e) 8 | 5 16 |
2 |
15 16 |
= 5 | 3 8 |
f) 1 | 3 20 |
|
9 20 |
= | 7 10 |
15. Subtract.
| 14. a) 6 | 1 8 |
2 |
3 4 |
= 3 | 3 8 |
b) 5 | 1 2 |
1 |
5 6 |
= 3 | 2 3 |
| 14. c) 9 | 3 4 |
2 |
5 6 |
= 6 | 11 12 |
d) 6 | 2 9 |
|
5 6 |
= 5 | 7 18 |
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