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Subtract 81/16 from 10/84

1st number: 10/84, 2nd number: 5 1/16

10/84 - 81/16 is -1661/336.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 16 is 336
  2. For the 1st fraction, since 84 × 4 = 336,
    10/84 = 10 × 4/84 × 4 = 40/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    81/16 = 81 × 21/16 × 21 = 1701/336
  4. Subtract the two fractions:
    40/336 - 1701/336 = 40 - 1701/336 = -1661/336

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