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Subtract 18/35 from 27/72

27/72 - 18/35 is -39/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 35 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 72 × 35 = 2520,
    27/72 = 27 × 35/72 × 35 = 945/2520
  3. Likewise, for the 2nd fraction, since 35 × 72 = 2520,
    18/35 = 18 × 72/35 × 72 = 1296/2520
  4. Subtract the two like fractions:
    945/2520 - 1296/2520 = 945 - 1296/2520 = -351/2520
  5. After reducing the fraction, the answer is -39/280

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