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Subtract 27/30 from 9/24

9/24 - 27/30 is -21/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 24 × 5 = 120,
    9/24 = 9 × 5/24 × 5 = 45/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    27/30 = 27 × 4/30 × 4 = 108/120
  4. Subtract the two like fractions:
    45/120 - 108/120 = 45 - 108/120 = -63/120
  5. After reducing the fraction, the answer is -21/40

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