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Subtract 18/98 from 9/56

9/56 - 18/98 is -9/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 98 is 392
  2. For the 1st fraction, since 56 × 7 = 392,
    9/56 = 9 × 7/56 × 7 = 63/392
  3. Likewise, for the 2nd fraction, since 98 × 4 = 392,
    18/98 = 18 × 4/98 × 4 = 72/392
  4. Subtract the two fractions:
    63/392 - 72/392 = 63 - 72/392 = -9/392

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