I'm screwing up my fractions -- need help PLEASE?
470404
((a^2 - b^2)/8a) X ((4a^3)/(a + b)^2))\n(4a^3(a^2 - b^2))/(8a(a + b)^2)\n((4a^3)/(8a)) * ((a^2 - b^2)/(a + b)^2)\n((a^(3 - 1))/2) * (((a - b)(a + b))/((a + b)(a + b)))\n((a^2)/2) * ((a - b)/(a + b))\n\nANS : ((a^2)(a - b))/(2(a + b))\n\nOn your problem, here is where you went wrong\n\nTo make it easier, you should had kept your problem in\n\n(4a^3(a - b))/(8a(a + b)) form, then had done this\n\n((4a^3)/(8a)) * ((a - b)/(a + b))\n\n(4/8)(a^(3 - 1))((a - b)/(a + b))\n(1/2)(a^2)((a - b)/(a + b))\n((a^2)(a - b))/(a + b)
545361
u can't get a remainder only a decimal
731226
Turn them into improper fractions:\n47/8+41/12\n141/24+82/24=\n223/24 or 9 7/24
302338
take away the percent sign, move decimal 2 to the left.ie: 25% = .25\noops... sorry, reverse that.
779807
Yiu would first decide how many decimal places you are going to consider.  The usual is 3.  Then work it from there...;
993909
The way to divide fractions is to first convert any mixed numbers to improper fractions and then multiply by the reciprocal (the reciprocal is what you get when you switch the numerator and the denominator). Thus for your first question, you have 3 5/6 ÷ 3 1/2 = 23/6 ÷ 7/2 = 23/6 * 2/7 = 46/42 = 23/21 or 1 2/21.\n\nTo add fractions, you must first convert all the fractions so that they have the same denominator, then simply add the numerators. So for your second question, 1/3 + 1/2 + 3/4 = 4/12 + 6/12 + 9/12 = 19/12 or 1 7/12.\n\nIf you're trying to add mixed numbers, you may do so either by converting to improper fractions and then adding, OR you can save yourself some time by adding the fractional portion and the whole number portion seperately, and then recombining. Conceptually, a mixed number is A b/c is A + b/c and so you're really just using the commutative property of addition to rearrange your numbers before adding. Thus for your third problem: 12 1/4 + 5 1/4 + 8 1/2 + 7 1/4 = 12 + 5 + 8 + 7 + 1/4 + 1/4 + 2/4 + 1/4 = 32+5/4 = 33 1/4
715760
Ok to change a decimal into a percentage just move the decimal over 2 spaces. In example .58 is 58% and .03 is 3%. Now it has been a while since school for me but if a mixed number is 1 3/4 or something to that extent you take the bottom of the fraction multiply it by the whole number and add the top number of the fraction. So 1 3/4 is equal to 7/4. To make that a percentage divide the top number by the bottom number which makes it 175%. I could be way off for your mixed numbers, but it has been awhile. Hope I could help a little!!
873604
I would recommend changing 3 1/2 into an improper fraction.  \n\nSo 3 1/2 will become 7/2.\n\nNow we are multiplying 7/2 and 3/4.\n\nRemember when multiplying fraction we say top times top and bottom times bottom.\n\nSo we will have (7 x 3) / (2 x 4), which is 21/8.\n\n21/8 as a mixed number becomes 2 5/8.\n\nHope this helps!
968689
Do you want to do it by calculator or by hand?\n\nIf by calculator, just take the top number divided by the bottom number to get your decimal:\n\n>> Fraction:  3/4 = 3 ÷ 4 = 0.75\n\n>> Mixed number:  Put the whole number to the left of the decimal point, then divide the top number by the bottom number to get the portion to the right of the decimal:  Example 8 2/3 = 8.666...\n\nIf by hand, multiply top and bottom to get 100 in the bottom (if possible) ... for example, multiply 3/4 by 25/25 to get 75/100 = 0.75.\n\nIf it's not possible to get 100 in the bottom, then just do long division to get the decimal.\n\nHope that helped a little!\n\n~ ♥ ~
981364
Gopal has the correct answer! \n\nSo... becareful with some other results... and... never use:\n0.833 instead of 5/6... it's a mistake!\n\nFinished Algebra with 19!
884753
You have to first find a common denominator for the bottom number of the fractions  ie 4 and 8.\n4 and 8 both go into 8 so 3/8 stays the same.  To change 1/4 to an   */8 fraction you need to x the top number by the same number as the bottom...so do 2 x 1 =2  \nSo 1/4  is the same as 2/8.\nNow you can subract 3 3/8 from 7 2/8 very easily.
287180
to change a decimal into a fraction take the decimal lets say .56 and put to over 1 with as many zeros that there is in the decimal so it becomes 56/100 then reduce to its simplest terms....56/100=14/25  and viola!\n\nto turn it into a decimal just divid it so it would be 14 divided by 25 ...and you get .56! \n\nhope this helps :)
372160
Change them to improper fractions\n1 1/4 = 5/4\n6 2/3 = 20/3\n5/4 divided by 20/3 equals 5/4 times 3/20\n(5/4)(3/20) = 15/80 = 3/16\n\n20 divided by 6 2/3 = 20 divided by 20/3 = \n20 times 3/20 = (20/1)(3/20) = 60/20 = 3\n\n4/5 divided by 4/5 is 1.\n(Any nonzero number divide by itself is always 1.)\n\n16 1/2 divided by 6 2/3 = 33/2 divided by 20/3 = \n33/2 times 3/20 = (33/2)(3/20) = 99/40\n\n28 divided by 4/5 = (28/1)(5/4) = 35
484592
I don't know the rule... I don't even think there is one you jsut divide the fraction and see if it repeats... But to change a decimal into a fraction (if you can round the fraction to the hundreths-the first 2 numbers after the decimal-) but multiply the decimal by onehundred and then try to reduce...
842934
Ok, first you must get the -8 and the x/-2 out of parentheses, so u just multiply them both by one. So then is -8 * x / -2. First, you do -8 * x, which is -8x. The problem then becomes -8x / 2. In this step, just don't mind the negative or the x and just put them back in at the end. So you're really just doing 8 / 2, which is 4. You must put the - and the x back in, so the answer is -4x. Ta Da!
602043
I haven't done partial fractions in a while, so you might want to check this: \n1/(x+3) - 2/(x+3)^2 + 5/(x-7)
923501
To multiply fractions, fundamentally the answer is the product of the numerators (top numbers) divided by the product of the denominators (bottom numbers).  For example,\n\n(2/3) * (3/7) = (2*3)/(3*7) = 6/21\n\nWhen any of the fractions contain whole parts such as the "4" in your problem, it does slightly complicate it.  Let me show you 2 slightly different ways to deal with this situation, you pick the one you like:\n\nYour problem can be rewritten as\n\n(4 + 2/7)*(8/11) =\n\n[4 * (8/11)] + [(2/7) * (8/11)] =\n\n(32/11) + (16/77) =\n\n224/77 + 16/77 =\n\n240/77\n\nOr you can do this shortcut, which converts the "4" to "elevenths" - multiple it (the "4") by the denominator (7) then add the numerator (2).  4*7 = 28, plus 2 = 30.  This will be your new numerator.  Now the problem looks like:\n\n(30/7) * (8/11) =\n\n(30 * 8)/(7*11) =\n\n240/77\n\nGet it?