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In maths fractions are more tricky. How2 can it be solved

2007-06-10 07:15:42 · 5 answers · asked by Anonymous in Science & Mathematics Mathematics

5 answers

get yourself a maths book> . . . . , . . , , . , . , , , . ' . , . .; ,

2007-06-10 07:22:48 · answer #1 · answered by Stan Darsh 3 · 0 0

You have to think of a fraction as a division. If x/y is the fraction - say 3/4 - then you have to divide x by y ie divide 3 by 4 and you can get the answer in decimals - in gthis example 0.75. When you see the division sign - dot over a line with a dot underneath - think of the first number replacing the dot on top and the second number the dot on the bottom. Thats the intuition that connects a division and a fraction. Another way is to think of the number on the bottom as the number of shares. Something over three is the number of 'thirds', over four 'quarters', over five 'fifths' and so on.
If you need to know more then you'll need to ask a more specific question. How to 'do' fractions doesnt really tell us what it is you want to know.

2007-06-10 07:35:54 · answer #2 · answered by Anonymous · 0 0

personally I find fractions easier to understand than decimals. ie. 1/4 is easier to understand than 0.25
to convert a fraction into a decimal say 1/8 add an 0 the 1
place the decimal point and divide by eight the answer is -1
with 2 left over add an 0 to this and divide by 8 again the answer is 2 with f4 left over . so far you answer is .12 with 4 left over. Again place an 0 ater the 4 and divide by eight the answer is .125 ( or for the sake of clarity 0.125

To convert 0.625 to a decimal. Place a 1 directly under the decimal place and a series of 0 s undr the rest of the numbers
-625
1000.you divide to and bottom lined by in this case five and kepp on dividing top and bottom each by the same number until you reach 5/8

Hope you are not partacking of the micheal and this helps this helps

2007-06-10 08:20:34 · answer #3 · answered by Scouse 7 · 0 0

Easy
*Multiplication: multiply directly (numerator) x (numerator) and (denominator) x (denominator).
eg 2/3 x 4/5 = (2x4)/(3x5) = 8/15

*Division: multiply crossed down and take the result crossed up:
eg 2/3 x 4/5 = (2x5) and the result goes up /(3x4) and the result goes down = 10/12 (reduced: 5/6)

*Sum and Substraction: multiply each fraction by the denominator of the other. eg 2/3 + 4/5, do 3x4/3x5 which is 12/15. And then the other: 5x2/5x3 which is 10/15.
Then you can sum (or substract) directly because both of them have the same denominator (15).
e.g. 12/15 + 10/15 = (12 + 10)/15 = 22/15

2007-06-10 08:23:10 · answer #4 · answered by shapetalker 3 · 0 0

They way I was taught was think of a cake and cut into the portions that the fraction asked if you want 1-3rd then you divide the cake into three, 1-4th cut into four,1-5th cut into five and so on, to add and subract fractions well thats another story.

2007-06-10 07:31:58 · answer #5 · answered by John J 1 · 0 0

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