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Subtract 3/20 from 8/9

8/9 - 3/20 is 133/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 9 × 20 = 180,
    8/9 = 8 × 20/9 × 20 = 160/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    3/20 = 3 × 9/20 × 9 = 27/180
  4. Subtract the two like fractions:
    160/180 - 27/180 = 160 - 27/180 = 133/180

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