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Add 63/80 and 3/9

63/80 + 3/9 is 269/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 9 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    63/80 = 63 × 9/80 × 9 = 567/720
  3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
    3/9 = 3 × 80/9 × 80 = 240/720
  4. Add the two like fractions:
    567/720 + 240/720 = 567 + 240/720 = 807/720
  5. 807/720 simplified gives 269/240
  6. So, 63/80 + 3/9 = 269/240
    In mixed form: 129/240

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