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Adding and Subtracting Rational Expressions 1
A
B
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D
Result
. . . .

Simplify each complex rational expression. Choose the correct answer.

1. 2 5 + 3 10 1 2 − 7 10
− 1 2
− 7 2
1 2
none of the choices
Answer: − 7 2
2. 2 3 + 4 2 3 − 4
− 7 5
− 4 3
1 2
none of the choices
Answer: − 7 5
3. 1 x + 5 6 4 x − 1 3
6 + 5 x 2 ( 12 − x )
6 + 5 x 12 − x
x + 5 12 − x
none of the choices
Answer: 6 + 5 x 2 ( 12 − x )
4. x + 1 − 1 2 3 x + 1 2
2 x − 1 6 x + 1
2 x + 1 6 x + 1
1 3
none of the choices
Answer: 2 x + 1 6 x + 1
5. 2 x + 1 + 3 x − 1 5 x 2 − 1
x + 1
5 x − 1 5
5 x + 1 5
none of the choices
Answer: 5 x + 1 5
6. 1 x + 1 x + 2 1 x − 1 x + 2
x + 1 2
2 x + 1 2
x+1
none of the choices
Answer: x + 1
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