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Subtract 63/98 from 81/80

1st number: 1 1/80, 2nd number: 63/98

81/80 - 63/98 is 207/560.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 98 is 3920

    Next, find the equivalent fraction of both fractional numbers with denominator 3920
  2. For the 1st fraction, since 80 × 49 = 3920,
    81/80 = 81 × 49/80 × 49 = 3969/3920
  3. Likewise, for the 2nd fraction, since 98 × 40 = 3920,
    63/98 = 63 × 40/98 × 40 = 2520/3920
  4. Subtract the two like fractions:
    3969/3920 - 2520/3920 = 3969 - 2520/3920 = 1449/3920
  5. After reducing the fraction, the answer is 207/560

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