Algebraic FractionsDate: 5/27/96 at 23:39:56 From: Anonymous Subject: Algebraic fractions 1) How would you solve for x if the equation is 2/x = 4/3? 2) How would you find the LCD? Date: 6/5/96 at 21:34:9 From: Doctor Jodi Subject: Re: Algebraic fractions Hi there! Here's how I'd solve for x: 2 4 - = - x 3 multiply each side by 3x 3x * 2 = 3x * 4 ------ ------ x 3 6 = 4x Now divide each side by 4 6 4x - = ---- 4 4 6/4 = x = 3/2 (Remember that since x was in the denominator, a solution which makes x = 0 would be invalid) As far as finding the LCD, before you know what x is, strictly speaking, you CAN'T find the LCD. You can, however, find a common denominator, like 3x. Hope this helps! -Doctor Jodi, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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