Algebra 1 - MathnMind
Algebra 1 - MathnMind
Algebra 1 - MathnMind
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12-6<br />
NAME ______________________________________________ DATE ____________ PERIOD _____<br />
Practice<br />
Rational Expressions with Like Denominators<br />
Find each sum.<br />
n 3n<br />
7u 5u<br />
1. 2. <br />
8 8<br />
16 16<br />
w 9 w 4<br />
s 8 s 4<br />
3. 4. <br />
9 9<br />
4 4<br />
4c 4<br />
n 6 8<br />
5. 6. <br />
c 1 c 1<br />
n 2 n 2<br />
x 5 2<br />
r 5 2r 1<br />
7. 8. <br />
x 2 x 2<br />
r 5 r 5<br />
4p 14 2p 10<br />
2y 1 4y 5<br />
9. 10. <br />
p 4 p 4<br />
3y 2 3y 2<br />
5a 2 2a 4<br />
6t 5 4t 3<br />
11. 12. <br />
2a 2 2a 2<br />
3t 1 3t 1<br />
Find each difference.<br />
3y y<br />
13. <br />
8 8<br />
9n 4n<br />
14. <br />
5 5<br />
r 2 r 5<br />
15. <br />
3 3<br />
x 6 x 7<br />
s 14 s 14<br />
6 2<br />
16. 17. 18. <br />
2 2<br />
5 5<br />
c 1 c 1<br />
7 6<br />
2y 3<br />
4p 4p<br />
19. 20. 21. <br />
d 6 d 6<br />
2y 3 3 2y<br />
p 5 5 p<br />
2y 7y<br />
6a 4 4a 6<br />
30t 5<br />
22. 23. 24. <br />
y 2 2 y<br />
2a 2 2a 2<br />
6t 1 1 6t<br />
25. GEOMETRY Find an expression for the perimeter of<br />
rectangle ABCD. Use the formula P 2 2w.<br />
5a 4b<br />
2a b<br />
26. MUSIC Kerrie is burning an 80-minute CD-R containing her favorite dance songs.<br />
Suppose she has burned 41 minutes of songs and has five more songs in the queue that<br />
total x minutes. When she is done, write an expression for the fraction of the CD that<br />
has been filled with music.<br />
© Glencoe/McGraw-Hill 738 Glencoe <strong>Algebra</strong> 1<br />
A<br />
D<br />
B<br />
3a 2b<br />
2a b<br />
C
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