<PRE><B>Question 250914</B>
11/6p + -7/4p

Find LCD: LCD is 12p
to get LCD (11/6p * 2/2)+ (-7/4p * 3/3)
Now that you have a common denominator, you can add this fraction properly. 
22/12p + -21/12p =  
22-21/12p = 
Answer: 1/12p

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