Algebraic Manipulation Worksheets Page 5
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5Find the (a) greatest common factor and (b) least common multiple for each set of numbers by
listing factors and multiples.
85. 25, 40
86. 12, 16
87. 9, 15, 21
88. 8, 12, 15
Find the (a) greatest common factor and (b) least common multiple for each set of numbers by
using primes.
89. 36, 54
90. 145, 180
91. 15, 21, 45
92. 16, 24, 40
Find the (a) greatest common factor and (b) least common multiple for each set of expressions.
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93. 12x
y
,16x
y
94. 25x
y
, 35x
y
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4
5
3
5
4
4
3
3
7
95. 6x
y
, 8x
y
,10x
y
96. 5x
y
,10x
y
,15x
y
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