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Subtract 25/54 from 7/30

7/30 - 25/54 is -31/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 30 × 9 = 270,
    7/30 = 7 × 9/30 × 9 = 63/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    25/54 = 25 × 5/54 × 5 = 125/270
  4. Subtract the two like fractions:
    63/270 - 125/270 = 63 - 125/270 = -62/270
  5. After reducing the fraction, the answer is -31/135

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