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Subtract 49/16 from 80/72

1st number: 1 8/72, 2nd number: 3 1/16

80/72 - 49/16 is -281/144.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 16 is 144

    Next, find the equivalent fraction of both fractional numbers with denominator 144
  2. For the 1st fraction, since 72 × 2 = 144,
    80/72 = 80 × 2/72 × 2 = 160/144
  3. Likewise, for the 2nd fraction, since 16 × 9 = 144,
    49/16 = 49 × 9/16 × 9 = 441/144
  4. Subtract the two like fractions:
    160/144 - 441/144 = 160 - 441/144 = -281/144

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