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Subtract 20/49 from 10/28

10/28 - 20/49 is -5/98.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 49 is 196

    Next, find the equivalent fraction of both fractional numbers with denominator 196
  2. For the 1st fraction, since 28 × 7 = 196,
    10/28 = 10 × 7/28 × 7 = 70/196
  3. Likewise, for the 2nd fraction, since 49 × 4 = 196,
    20/49 = 20 × 4/49 × 4 = 80/196
  4. Subtract the two like fractions:
    70/196 - 80/196 = 70 - 80/196 = -10/196
  5. After reducing the fraction, the answer is -5/98

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