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Subtract 63/80 from 12/56

12/56 - 63/80 is -321/560.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 56 × 10 = 560,
    12/56 = 12 × 10/56 × 10 = 120/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    63/80 = 63 × 7/80 × 7 = 441/560
  4. Subtract the two like fractions:
    120/560 - 441/560 = 120 - 441/560 = -321/560

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