anonymous
  • anonymous
addition with unlike denominators 1/3+1/4=
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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amistre64
  • amistre64
make em the same...
amistre64
  • amistre64
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
amistre64
  • amistre64
(4)(3) = 12 1 (4) 1 (3) 4+3 ---- + ---- = ----- 3 (4) 4 (3) 12

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amistre64
  • amistre64
what happens when we multipy nything by (1)? does it change in value?
amistre64
  • amistre64
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?
anonymous
  • anonymous
ok i got 12 at the bottom for both but i dont get how to get the two top numbers
amistre64
  • amistre64
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?
amistre64
  • amistre64
1 (4) 1 (3) 4+3 -- -- + -- -- = ----- 3 (4) 4 (3) 12 Do you see it?
anonymous
  • anonymous
but the tow bottom number arent the same in the 2 one u did
anonymous
  • anonymous
7/12
anonymous
  • anonymous
amistre 64 the two bottom dumbers arent the same on the second one

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