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Subtract 2/18 from 27/20

1st number: 1 7/20, 2nd number: 2/18

27/20 - 2/18 is 223/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    27/20 = 27 × 9/20 × 9 = 243/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    2/18 = 2 × 10/18 × 10 = 20/180
  4. Subtract the two like fractions:
    243/180 - 20/180 = 243 - 20/180 = 223/180
  5. In mixed form: 143/180

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