Algebra help? - XP Math - Forums

 XP Math - Forums Algebra help?

 07-17-2007 #1 Robin Guest   Posts: n/a Algebra help? Can someone please help me? I can't figure out what and how to get this answer.3/8 + p = 1/2
 07-17-2007 #2 Dots Guest   Posts: n/a You're solving for the variable, p. That is, you're trying to find a value for p such that the above equation holds true.Begin by subtracting 3/8 from both sides to yield: p = 1/2 - 3/8. Then, find the lowest common denominator, and rewrite your fractions: p= 4/8 - 3/8.Therefore, p=1/8.
 07-17-2007 #3 dkillinx Guest   Posts: n/a Ok...the first thing I would suggest is to eliminate the fractions. To do so you should multiply both sides by the highestst common denominator of both fractions. I would suggest multiplying the whole thing by 8, and solving for p from there.1. 8 * (3/8 + p = 1/2)2. 24/8 + 8p = 8/2 from here reduce the fractions to whole numbers.3. 3 + 8p = 4 now subtract 3 from both sides4. 3 (-3) + 8p = 4 -35. 8p = 1 now divide both sides by 8 to solve for p6. (8p/8) = (1/8) 8/8 = 1 so you get p by itself7. p = 1/8 now to test your solution put 1/8 in for p and plug it back into your original equation to see if it works out, if not then it's the wrong answer.8. 3/8 + 1/8 = 1/2add up the fractions...9. 4/8 = 1/2Simply reduce the fractions to the lowest common denominator in this case 2...10. 4/8 = 2/4 = 1/211. So now 1/2 = 1/2 and you're answer is correct.I hope this helps...
 07-17-2007 #4 dalmatianfest Guest   Posts: n/a u have 2 do the opposite of the sign which in this case is a + sign so u subtract 3/8 from each side...is that simplified enough?if not email me at dalmatianfest@yahoo.com
 07-17-2007 #5 Richard_CA Guest   Posts: n/a First thing we do is put the numbers on the right side of the equal sign. If we have a number on the left side of the equal sign, we bring it to the right side and change the signTherefore 3/8 + p = 1/2 p= 1/2 - 3/8Now we need a common denominator. Once we get a common denominator, we subtract the numerators, and bring down the denominator.So p = 1/2 - 3/8 p = 1/2(4/4) - 3/8(1/1) p = 4/8 - 3/8 p = 1/8 or 0.125
 07-17-2007 #6 akeenish Guest   Posts: n/a p=1/2-3/8 p=1/8
 07-17-2007 #7 chikku Guest   Posts: n/a p = 1/2 - 3/8now take the LCM of the two denominators which is 2,8 , LCM = 8divide the LCM with each denominator, and multiply the answer with the numeratorso, 8/2 = 4 and 8/8 = 1multiply 4 with the first numerator, 1, it will = 4, and 1 with the second numerator 3 = 3p = (4 - 3) / 8p = 1/8
 07-17-2007 #8 Yassi Guest   Posts: n/a I HOPE YOU ARE IN 4TH GRADE!!the answer is 1/8
 07-17-2007 #9 wendyrx/piscesfly Guest   Posts: n/a You need a common denominator.. so 1/2 would become... 4/8, then subtract 3/8 from both sides and there you have it, you've solved for p!Ta-Da!!!~W.That was fun, can I have some more?! =)

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