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Subtract 7/9 from 15/84

15/84 - 7/9 is -151/252.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 9 is 252
  2. For the 1st fraction, since 84 × 3 = 252,
    15/84 = 15 × 3/84 × 3 = 45/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    7/9 = 7 × 28/9 × 28 = 196/252
  4. Subtract the two fractions:
    45/252 - 196/252 = 45 - 196/252 = -151/252

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