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Subtract 8/49 from 7/20

7/20 - 8/49 is 183/980.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 980
  2. For the 1st fraction, since 20 × 49 = 980,
    7/20 = 7 × 49/20 × 49 = 343/980
  3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
    8/49 = 8 × 20/49 × 20 = 160/980
  4. Subtract the two like fractions:
    343/980 - 160/980 = 343 - 160/980 = 183/980

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