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Subtract 63/98 from 27/40

27/40 - 63/98 is 9/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 98 is 1960
  2. For the 1st fraction, since 40 × 49 = 1960,
    27/40 = 27 × 49/40 × 49 = 1323/1960
  3. Likewise, for the 2nd fraction, since 98 × 20 = 1960,
    63/98 = 63 × 20/98 × 20 = 1260/1960
  4. Subtract the two fractions:
    1323/1960 - 1260/1960 = 1323 - 1260/1960 = 63/1960
  5. After reducing the fraction, the answer is 9/280

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