WorksheetsLCD of Rational Expressions
Total questions: 11
Worksheet time: 23mins
Name
Class
Date
1.
What is the least common denominator for 41 and 64
a)
12
b)
6
c)
24
d)
4
2.
Find the LCD of these fractions.
a)
(x+2)(x-2)
b)
(x+2)
c)
(x-2)
d)
(x2-4)(x+2)
3.
Find the LCD of these fractions.
a)
(x+2)(x-2)
b)
(x+2)(x+1)
c)
(x+2)(x-2)(x+1)
d)
(x-2)(x+1)
4.
Find the least common denominator of the expression
a)
18
b)
6x
c)
3xy
d)
6xy
5.
Find the LCD of the following rational numbers 52 and 103
a)
10
b)
5
c)
15
d)
20
6.
Find the LCD of the following rational expression x+85 and x+32x
a)
(x+8)(x-3)
b)
8x(x+2)
c)
(x2+3x+24)
7.
Find the LCD of the following rational expressions
x+12x and x2−11
a)
(x+1)(x-1)
b)
(x+1)2 (x-1)
c)
(2x+2)
8.
What is my name?
a)
Slanthead
b)
Slugger Joe
c)
Slam Sam
d)
Popeye
9.
What movie are these puppies from?
a)
Lady and The Tramp
b)
Bambi
c)
Jungle Book
d)
101 Dalmations
10.
What is the least common multiple of x2-16 and x2+4x-32?
HINT: Think least common denominator!
a)
(x + 4)(x – 4)(x + 8)
b)
(x-4)2 (x+8)
c)
(x + 4)(x – 4)
d)
(x - 4)(x-4)2(x + 8)
11.
What is the least common multiple of 3x2 - 27 and 5x2+10x-75?
HINT: Think least common denominator!
a)
3(x+3)(x-3)(x+5)
b)
15(x+3)(x+3)(x+5)
c)
15(x+3)(x-3)(x+5)
d)
5(x+3)(x-3)(x+5)
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