Name___________________
DSPM 0700 HOMEWORK
Instructions: Reduce all answers to lowest terms.
1. Add:
3 5
14 7
3 5 3 10
14 7 14 14
13
14
(LCD = 14. Change to common denominator)
(Add numerators)
2. One book measures
1
26
inches thick and a second book measures
7
39
inches thick.
What is the total thickness?
3
1
6 18
714
9 18
17
18
2 2 (Use common denominator)
3 3
5 (Add whole-number parts and fractions separately)
The total thickness is
17
18
5
inches.
Subtract the following:
3.
5 7
12 18
5 7 15 14
12 18 36 36
1
36
(LCD = 36)
4.
1 3
9 3
32 8
33
1 1
32 32 32
312 12
8 32 32
21
32
9 9 8
3 3 3
5 (Cannot subtract fraction parts. Regroup 1 unit
as thirty-seconds.
32 33
1 1 1
32 32 32 32 32
9 8 1 8 8
