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anonymous

  • 5 years ago

how do you add and subtract fractions???????????????

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  1. anonymous
    • 5 years ago
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    you have to find a common denominator between the two fractions you are adding or subtracting

  2. anonymous
    • 5 years ago
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    a/b + c/d = (ad+cb)/bd

  3. anonymous
    • 5 years ago
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    uuuhhhh??

  4. anonymous
    • 5 years ago
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    pick some random single digit numbers for a b c d, write the equation, start calculating it, spot the pattern, repeat, own it

  5. anonymous
    • 5 years ago
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    Give us an example to work with, it would be better to explain

  6. anonymous
    • 5 years ago
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    Go back to Grade 5 ?

  7. anonymous
    • 5 years ago
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    11/28 + 13/24

  8. anonymous
    • 5 years ago
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    for example, say you want to add 2/3 + 1/2 you have to find a number that can be divided by both 3 and 2 an easy way to find this is to multiply them together so 3x2=6 there is your common demoninator but you have to multiply the numerators too so we multiplied 3x2 to get 6 so we have to multiply 2x2 so the first fraction is 4/6 then we multiplied 2x3 to get 6 so we have tomultiply 1x3 too so the second fraction is 3/6 so we have 4/6+3/6 add the numerators and get 7/6

  9. anonymous
    • 5 years ago
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    your mean!!! I just suck at math!!! ok??

  10. anonymous
    • 5 years ago
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    that was for WaleeedShazzy!!

  11. anonymous
    • 5 years ago
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    |dw:1327180001369:dw|

  12. anonymous
    • 5 years ago
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    Goal is to make denominators the same by multiplying with an integer. Of course you need to multiply the numerator(upper portion of the fraction) with the same number 11/28 * (6/6) + 13/24 *(7/7) = (66/168) + (91/168) = (66+91)/168 = 157/168

  13. anonymous
    • 5 years ago
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    |dw:1327179908001:dw|

  14. anonymous
    • 5 years ago
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    you can only add (or subtract) the numerators if the denominators are the same

  15. anonymous
    • 5 years ago
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    IF you look at the denominators you will find the integers: 28 = 4 x 7 24 = 4 x 6 to make them equal 28 x 6 = 4 x 7 x 6 24 x 7 = 4 x 6 x 7

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