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Subtract 5/18 from 28/20

1st number: 1 8/20, 2nd number: 5/18

28/20 - 5/18 is 101/90.

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,
    28/20 = 28 × 9/20 × 9 = 252/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    5/18 = 5 × 10/18 × 10 = 50/180
  4. Subtract the two like fractions:
    252/180 - 50/180 = 252 - 50/180 = 202/180
  5. After reducing the fraction, the answer is 101/90
  6. In mixed form: 111/90

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