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Subtract 45/16 from 12/84

1st number: 12/84, 2nd number: 2 13/16

12/84 - 45/16 is -299/112.

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,
    12/84 = 12 × 4/84 × 4 = 48/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    45/16 = 45 × 21/16 × 21 = 945/336
  4. Subtract the two like fractions:
    48/336 - 945/336 = 48 - 945/336 = -897/336
  5. After reducing the fraction, the answer is -299/112

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