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anonymous

  • 5 years ago

addition with unlike denominators 1/3+1/4=

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  1. amistre64
    • 5 years ago
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    make em the same...

  2. amistre64
    • 5 years ago
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    the easiest way is to multiply the bottoms to get a common denominator. might not be the lowest one, but itll work in a pinch

  3. amistre64
    • 5 years ago
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    (4)(3) = 12 1 (4) 1 (3) 4+3 ---- + ---- = ----- 3 (4) 4 (3) 12

  4. amistre64
    • 5 years ago
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    what happens when we multipy nything by (1)? does it change in value?

  5. amistre64
    • 5 years ago
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    the number 4/4 and 3/3 are both equal to (1) and so we can use that to our advantage to get a common denominator. Does that make sense?

  6. anonymous
    • 5 years ago
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    ok i got 12 at the bottom for both but i dont get how to get the two top numbers

  7. amistre64
    • 5 years ago
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    it is a sly trik we use in math. it is to multiply by some form of "1". Tell me is 3/3 = 1? and is 4/4 = 1?

  8. amistre64
    • 5 years ago
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    1 (4) 1 (3) 4+3 -- -- + -- -- = ----- 3 (4) 4 (3) 12 Do you see it?

  9. anonymous
    • 5 years ago
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    but the tow bottom number arent the same in the 2 one u did

  10. anonymous
    • 5 years ago
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    7/12

  11. anonymous
    • 5 years ago
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    amistre 64 the two bottom dumbers arent the same on the second one

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