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Subtract 45/54 from 4/5

4/5 - 45/54 is -1/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 54 is 270
  2. For the 1st fraction, since 5 × 54 = 270,
    4/5 = 4 × 54/5 × 54 = 216/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    45/54 = 45 × 5/54 × 5 = 225/270
  4. Subtract the two fractions:
    216/270 - 225/270 = 216 - 225/270 = -9/270
  5. After reducing the fraction, the answer is -1/30

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