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Subtract 2/7 from 21/98

21/98 - 2/7 is -1/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 7 is 98

    Next, find the equivalent fraction of both fractional numbers with denominator 98
  2. For the 1st fraction, since 98 × 1 = 98,
    21/98 = 21 × 1/98 × 1 = 21/98
  3. Likewise, for the 2nd fraction, since 7 × 14 = 98,
    2/7 = 2 × 14/7 × 14 = 28/98
  4. Subtract the two like fractions:
    21/98 - 28/98 = 21 - 28/98 = -7/98
  5. After reducing the fraction, the answer is -1/14

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