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Subtract 45/15 from 18/24

1st number: 18/24, 2nd number: 3 0/15

18/24 - 45/15 is -9/4.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 24 × 5 = 120,
    18/24 = 18 × 5/24 × 5 = 90/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    45/15 = 45 × 8/15 × 8 = 360/120
  4. Subtract the two like fractions:
    90/120 - 360/120 = 90 - 360/120 = -270/120
  5. After reducing the fraction, the answer is -9/4

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