how are ratios different from fractions?
818052
fractions are usually of the same units. Meaning the top and bottom number are of the same type, and are more comonly just numbers. \n\nRatios can be like this but don't need to be. If i have 5 apple and 10 oranges the ratio of apples to oranges is 5/10, but i cannot say i have .5 orangples (you can have .5 apples/oranges though). This is because the top is different then the bottom... it is akin to having y/x. \n\nThis is the answer i think you are looking for, but remember that it is still a fraction -- it is just irreducible. Just remember that sometimes the units of the numbers on top and bottom of the ratio will actually be the same even if we are talking about different things (like area and circum.).
662641
fraction line, quotient line, ratio line
69739
This site has a good explanationa and some examples to help explain ratios.  At the end of the lesson, there is even a practice test you can take.\n\nhttp://www.math.com/school/subject1/lessons/S1U2L1GL.html\n\nBy the way, try to be a little more specific next time.  Add as many details as you can.  It's hard for people to help when they don't know exactly what you need an answer or advice on.  Good Luck with the math!!
68481
ok when adding fractions you find the common denominator on the bottom #s of the fraction then when you have the common denominator you see how much each goes into and add them\n\n1  3\n2  4 so them u go 2 goes into 4 (2 x) then x # by 1\n+\n3  3\n4  4   so 4 goes into 4 once, then x 3 = 3\n\nthen you add 3+3=6 so answer is 6\n                                4\nu do same with subtracting fraction but in the end instead of adding the top #s you subtract
960965
fractions into decimals\n\neasy way is 7/100 \ndivide 7 by 100 and you will get 0.07\n\ndivde mix fractions like 2 5/8\nchange into improper fraction 21/8\nthen divde 21 by 8 and you will get 2.625
1165683
ratio is an expression of relative size of two numbers, the numbers could be any things... (ratio of doctors in london to kangaroos in australia)\n\nproportion is the ratio \n1) of a part considered in relation with the whole... (milk in my recipe, doctors in london to population of london), or \n2) statement of equality between two ratios (used only mathematically)\n\nFor practice problems on ration proportions, log on to www.mathguru.com and select relevant topics.
775233
Ratios 1:2 meaning 1/1=2/2
525632
Numerators and denominators are parts of a fraction, and usually only contain whole numbers.\n\nThe word denominator descends from the same word "denomination" does.  It simply means "what type".  In this case, it is referring to what type of a fraction (or piece) of the number one we are considering. Are we talking about pieces that are a third of the number one, that are a sixteenth of the number one, that are a fiftieth of the number one?  The denominator tells you how many total pieces of what you have you would need to have one whole unit of whatever you're talking about.  That's all it does.\n\nThe numerator, on the other hand, tells you the number of those pieces you actually have.  So, if you are talking about sixteenths of the number one, and you have four of them, you have four sixteenths of the number one, or just simply 4/16.\n\nSo, the denominator tells you how many pieces you need to make the number one, and the numerator tells you how many pieces of that size you actually have on hand.\n\nThe method we use to write them down is simply short-hand, because it is much easier to write 3/8 than it is to write out "three out of eight pieces needed to make one".
1104345
That simply means that the fraction is negative and should be treated accordingly.  4/-5 is the same thing as -(4/5) any number divided by a negative number becomes a negative number.  This is a very very very simple concept and needs to be understood for any competency whatsoever in the field of mathematics.
788661
A ratio is equivalent to a fraction. When two ratios are equal, then it is known as a proportion. Solving ratios require this method of cross-mutilplication.\n\n(x + 10) + x : x + 10 = 21 : 18\n\n(x + 10) + x    /    x + 10   =   21 / 18  (/ = divide)\n\nNote: write the above on paper in fraction form and you should see better\n\nreduce 21:18 to the lowest factor by dividing by 3 which will be 7 : 6 .Then cross-multiply the two set of fractions.\n\n\n7(x + 10) = 6 (x + 10 + x)\n7x + 70 = 6x + 60 + 6x\n7x - 6x - 6x = 60 - 70\n-5x = -10\nx = 2
134771
That would be like 2/2 is equivalent to 3/3, or 3/4 is equivalent to 6/8.  Equivalent fractions will be eqaul when they are reduced to their lowest form.  1/2 is equivalent to 40/80, the list goes on and on.
195987
although there can be some patterns seen in the numbers it is not a repeating decimal and can be taken out to a lot more decimal places then humans can calculate.  Also if you put it into fraction (22/7) that is the most accurate way to actually utilize the number.
980475
13/16 - 1/4 is like 13/16 - 4/16 which equal 9/16\n\nYou just have to get the denominators equal to add or subtract fractions...so just multiply the the top and bottom of 1/4 by 4 and you get 4/16 (which is the same as 1/4). It works the same for all fractions that you want to add or subtract.
961226
You find the fraction of a fraction by multiplying the top numbers and (separately) multiplying the bottom numbers.\n\nTherefore, the answer is 1/3 x 1/8, or 1 x1 over 3 x 8.  1 x1 = 1, and 3 x8 = 24, so you wind up with 1/24.\n\nWhen I first learned how to do this, I wanted to divide rather than multiply.  But you multiply the fractions, and, as I said, top numbers go with top numbers and bottoms with bottoms.  Good luck!!
740126
Gosh, momoftwins, I know I've answered many of these types of questions for you many times.  I would hope that my past explanations would've helped you, but I see you are still in the same boat as the first time I answered one of your questions.  If you let me know exactly what it is that you aren't getting, maybe I can explain it to you in a more meaningful way.  :)\n\nGet them over a COMMON DENOMINATOR first, then you can compare:\n\n9/13 = 9/13 * 8/8 = 72 / 104\n\n3/8 = 3/8 * 13/13 = 39 / 104\n\nSo 9/13 is clearly larger than 3/8  (since 72 > 39)\n\n~ ♥ ~
199971
Since when you multiply the top and bottom of fractions by the same number, you can find a common denominator for them. For example, 1/2 of a pie is the same as 2/4 or 3/6 of a pie. When you multiply 4/7 by 5/5, you get 20/35. Do the same thing for 2/5. Then you have 20/35 + 10/35. Add the 20 and then 10, and you get 30/35. Then that can be divided on top and bottom of 5 to get 6/7, which is your ANSWER! :)
891438
I used to also. I'll try to give an explanation: forgive me if I go over anything you already know. Alright, think of it this way: you know how to multiply fractions, correct? Alright, so when you multiply two fractions, such as 1/2 and 3/4, you multiply the numerators (those are on the top) (1x3) and the denominators (those are on the bottom) (2x4) and you have your answer: 1/2 x 3/4 = (1x3)/(2x4) = 3/8. Dividing is just the opposite of multiplication. So if you were dividing 1/2 by 3/4, you just flip over the second fraction and multiply: 1/2 / 3/4 = 1/2 x 4/3 = 4/6. \nHere's an answer that's a bit more advanced but might help you understand this better (at least it did for me): if you have some number, a, over some number, b, it can be written this way: a/b. Now, if you divide it by some other fraction, c/d, it can be written this way: \na/b x 1/(c/d). This is the same as saying that when you divide 6/1 by, say, 2 (which equals the fraction 2/1), it is the same as if you are multiplying 6/1 (6/1, or six divided by 1, equals 6) by 1/2. See for yourself: 6 / 2=3, 6 x 1/2= 6/1 x 1/2 = 6/2 which when you reduce (divide top and bottom by common factor, in this case 2) it equals 3/1, or 3. \n1/(c/d) is the reciprocal of (c/d). The reciprocal basically means you flip the top and bottom: for instance, the reciprocal of 2/3 is 3/2, the reciprocal of 1/2 is 2/1, or 2, the reciprocal of 4/1, or 4, is 1/4, etc. So if you flip over c/d, you get: a/b x d/c, which if a=1, b=2, c=3, and d=4, is exactly the same as what we had above.