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Subtract 15/30 from 20/98

20/98 - 15/30 is -29/98.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 30 is 1470
  2. For the 1st fraction, since 98 × 15 = 1470,
    20/98 = 20 × 15/98 × 15 = 300/1470
  3. Likewise, for the 2nd fraction, since 30 × 49 = 1470,
    15/30 = 15 × 49/30 × 49 = 735/1470
  4. Subtract the two fractions:
    300/1470 - 735/1470 = 300 - 735/1470 = -435/1470
  5. After reducing the fraction, the answer is -29/98

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