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Subtract 81/28 from 15/60

1st number: 15/60, 2nd number: 2 25/28

15/60 - 81/28 is -37/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 28 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 60 × 7 = 420,
    15/60 = 15 × 7/60 × 7 = 105/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    81/28 = 81 × 15/28 × 15 = 1215/420
  4. Subtract the two like fractions:
    105/420 - 1215/420 = 105 - 1215/420 = -1110/420
  5. After reducing the fraction, the answer is -37/14

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