Addition And Subtraction Of Rational Fractions With Answer Key

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Addition And Subtraction of Rational Fractions
Simplify.
7
1
x
x
1
5
3
+
1.
2.
3.
+
+
3
3
2
3
4
4
12
x
12
x
x
x
y
y
5
2
2
2
y
23
2
4.
5.
6.
+
+
+
2
2
x
5
x
6
x
3
y
1
y
1
y
y
20
y
5
+
+
+
+
4
2
12
1
5
1
y
7.
8.
9.
+
+
+
2
y
1
15
x
3
10
x
2
2
ab
2
a
b
y
4
y
3
+
+
+
+
3
x
4
2
x
5
3
a
5
a
x
3
x
10.
11.
12.
2
6
x
4
x
a
2
a
1
x
3
x
9
+
+
Answers:
2
1
5
y +
3
2
x
9
4
y
3
6
+
1.
2.
3.
4.
5.
6.
7.
3
3
3
x
x
4
y
(
x
3
)(
x
) 2
(
y
1
)(
y
) 1
y
4
y
3
+
+
+
+
+
2
27
10
a
5
b
2
ab
7
a
2 (
a
13
)
2
a
13
a
x
1
+
+
+
+
8.
9.
10.
11.
or
12.
2
5 (
x
) 1
2
ab
2 (
a
b
)
12
x
(
a
2
)(
a
) 1
(
a
2
)(
a
) 1
x
3
+
+
+
+

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