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Subtract 18/24 from 28/45

28/45 - 18/24 is -23/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 24 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 45 × 8 = 360,
    28/45 = 28 × 8/45 × 8 = 224/360
  3. Likewise, for the 2nd fraction, since 24 × 15 = 360,
    18/24 = 18 × 15/24 × 15 = 270/360
  4. Subtract the two like fractions:
    224/360 - 270/360 = 224 - 270/360 = -46/360
  5. After reducing the fraction, the answer is -23/180

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