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Subtract 21/20 from 5/49

1st number: 5/49, 2nd number: 1 1/20

5/49 - 21/20 is -929/980.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 20 is 980

    Next, find the equivalent fraction of both fractional numbers with denominator 980
  2. For the 1st fraction, since 49 × 20 = 980,
    5/49 = 5 × 20/49 × 20 = 100/980
  3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
    21/20 = 21 × 49/20 × 49 = 1029/980
  4. Subtract the two like fractions:
    100/980 - 1029/980 = 100 - 1029/980 = -929/980

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