_____________________________
UFID NAME: - ___ ___ ___ ___ - ___ ___ ___ ___
Suggested Exercises 04 Lecture 05
When turning in this assignment, this sheet must be stapled to the front with all ORGANIZED scratch work behind it.
Please write your final answers on this sheet in the answer block provided and circle your final answers on your scratch
work copy. Scratch work should be appropriately spaced apart and numbered.
In the following exercises, you will list the common denominator of the fractions to be added or subtracted.
the initial denominators are the same, then that value is the common denominator. Compute the sum and
Reduce if possible. Include official scratch work on this sheet. Underline or Circle your Answers.
Example:
2 4 2 5 4 3 10
12
2
Common denominator will be 15, =
+
=
+
=
3 5 35
53
15
15
15
scratch work
1) Common denominator will be ________
13
+=
32
2) Common denominator will be ________
24
+=
33
3) Common denominator will be ________
15
=
52
4) Common denominator will be 16
5) ________
72
+
=
8 Common denominator will be ________
7 11
+
=
8 15
Suggested Exercises 04 Page 1 of 3
If
NAME: _____________________________
UFID - ___ ___ ___ ___ - ___ ___ ___ ___
6) Common denominator will be ________
11 5
=
3 27
7) Common denominator will be ________
4 21
+
=
14 30
8) Common denominator will be ________
4 21
=
14 14
In the following exercises, you will multiply the fractions. It may be easier to factor the individual fractions first,
canceling out common factor, before multiplying as your final answer must be a fully reduced fraction. Show
official scratch work on this sheet. Underline or Circle your Answers.
Example:
2 84
2
347
24
8
=
=
=
77 15 11 7 3 5
11 5 55
Scratch Work
9)
13
=
32
10)
13
=
72
11)
2
3
=
9
8
Suggested Exercises 04 Page 2 of 3
NAME: _____________________________
12)
4 25
=
15 32
13)
15 2
=
3 10
14)
7
3
=
7
3
15)
7 22
=
77 2
16)
45 12
=
81 30
Suggested Exercises 04 Page 3 of 3
UFID - ___ ___ ___ ___ - ___ ___ ___ ___