<PRE><B>Question 321886</B>
9/16 - 1/12
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Find a common denominator.  The product always works.
16*12 = 192
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9/16 - 1/12
108/192 - 16/192 = 92/192
= 23/48
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You can waste time finding the LCD, least common denominator, but if it&#39;s not asked for, it only wastes time.  That can make a difference on a test.
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