Can someone please help me? I can't figure out what and how to get this answer.
3/8 + p = 1/2
2007-07-06 18:10:28 · 9 answers · asked by Robin 4 in Science & Mathematics ➔ Mathematics
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 sides
4. 3 (-3) + 8p = 4 -3
5. 8p = 1
now divide both sides by 8 to solve for p
6. (8p/8) = (1/8)
8/8 = 1 so you get p by itself
7. 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 = 1/2
add up the fractions...
9. 4/8 = 1/2
Simply reduce the fractions to the lowest common denominator in this case 2...
10. 4/8 = 2/4 = 1/2
11. So now 1/2 = 1/2 and you're answer is correct.
I hope this helps...
2007-07-06 18:24:51 · answer #1 · answered by dkillinx 3 · 1⤊ 0⤋
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 sign
Therefore 3/8 + p = 1/2
p= 1/2 - 3/8
Now 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
2007-07-06 18:27:07 · answer #2 · answered by Richard_CA 4 · 1⤊ 0⤋
p=1/2-3/8
p=1/8
2007-07-06 18:31:32 · answer #3 · answered by ? 2 · 1⤊ 0⤋
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.
2007-07-06 18:18:32 · answer #4 · answered by Dots 2 · 1⤊ 0⤋
p = 1/2 - 3/8
now take the LCM of the two denominators which is 2,8 , LCM = 8
divide the LCM with each denominator, and multiply the answer with the numerator
so, 8/2 = 4 and 8/8 = 1
multiply 4 with the first numerator, 1, it will = 4, and 1 with the second numerator 3 = 3
p = (4 - 3) / 8
p = 1/8
2007-07-06 18:42:30 · answer #5 · answered by Anonymous · 1⤊ 0⤋
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?! =)
2007-07-07 02:03:32 · answer #6 · answered by wendyrx/piscesfly 2 · 1⤊ 0⤋
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
2007-07-06 18:25:27 · answer #7 · answered by dalmatianfest 2 · 1⤊ 0⤋
subtract 3/8 from each side. use a calculator
2007-07-06 18:13:08 · answer #8 · answered by Lauren 5 · 1⤊ 0⤋
I HOPE YOU ARE IN 4TH GRADE!!
the answer is 1/8
2007-07-06 19:20:17 · answer #9 · answered by Yaasi 3 · 0⤊ 0⤋