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Subtract 45/24 from 20/15

1st number: 1 5/15, 2nd number: 1 21/24

20/15 - 45/24 is -13/24.

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,
    20/15 = 20 × 8/15 × 8 = 160/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    45/24 = 45 × 5/24 × 5 = 225/120
  4. Subtract the two like fractions:
    160/120 - 225/120 = 160 - 225/120 = -65/120
  5. After reducing the fraction, the answer is -13/24

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