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Subtract 18/54 from 9/10

9/10 - 18/54 is 17/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 10 × 27 = 270,
    9/10 = 9 × 27/10 × 27 = 243/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    18/54 = 18 × 5/54 × 5 = 90/270
  4. Subtract the two like fractions:
    243/270 - 90/270 = 243 - 90/270 = 153/270
  5. After reducing the fraction, the answer is 17/30

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