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Subtract 21/98 from 2/4

2/4 - 21/98 is 2/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 98 is 196

    Next, find the equivalent fraction of both fractional numbers with denominator 196
  2. For the 1st fraction, since 4 × 49 = 196,
    2/4 = 2 × 49/4 × 49 = 98/196
  3. Likewise, for the 2nd fraction, since 98 × 2 = 196,
    21/98 = 21 × 2/98 × 2 = 42/196
  4. Subtract the two like fractions:
    98/196 - 42/196 = 98 - 42/196 = 56/196
  5. After reducing the fraction, the answer is 2/7

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