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Subtract 15/24 from 42/15

1st number: 2 12/15, 2nd number: 15/24

42/15 - 15/24 is 87/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 24 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    42/15 = 42 × 8/15 × 8 = 336/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    15/24 = 15 × 5/24 × 5 = 75/120
  4. Subtract the two like fractions:
    336/120 - 75/120 = 336 - 75/120 = 261/120
  5. After reducing the fraction, the answer is 87/40
  6. In mixed form: 27/40

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