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Subtract 28/16 from 72/84

1st number: 72/84, 2nd number: 1 12/16

72/84 - 28/16 is -25/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 84 × 4 = 336,
    72/84 = 72 × 4/84 × 4 = 288/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    28/16 = 28 × 21/16 × 21 = 588/336
  4. Subtract the two like fractions:
    288/336 - 588/336 = 288 - 588/336 = -300/336
  5. After reducing the fraction, the answer is -25/28

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