FRAME 2-38
Solution to
SELF-TEST. Complete the self-test exercises below. After you have
Frame 2-37.
worked all the exercises, turn to the solution sheet on the following page
and check your work. For each exercise answered incorrectly, reread
8 1/3
the appropriate lesson frame(s) and rework the exercise.
(a + b) (c + d) =
1. Add and reduce:
ac + ad + bc + bd
a.
1
2
+
=
(2 + 1/2) (3 + 1/3) =
3
3
(2)(3) + (2)(1/3) +
b.
1
1
+
=
(1/2)(3) + (1/2)(1/3) =
2
8
6 + 2/3 + 3/2 + 1/6 =
c.
3
1
+
=
4
3
6 + 4/6 + 9/6 + 1/6 =
2. Subtract and reduce:
6 + 14/6 =
a.
12 _ 10
6 + 2 2/6 =
=
7
7
(6+2) + 1/3 =
b.
7 _ 1
=
8 1/3
8
2
c.
3 _ 1
=
CHECK:
8
3
2 1/2 x 3 1/3 =
3. Multiply and reduce:
5/2 x 10/3 =
a. 7
2
X
=
2
5
50/6 = 8 2/6 = 8 1/3
b. 2
1
X
=
3
4
4. Divide and reduce:
a. 2
3
=
5
8
b. 1
1
=
5
10
5. Change to improper fractions:
a. 6 2/5 =
b. 7
= __
4
MD0900
2-17