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Subtract 3/20 from 18/10

1st number: 1 8/10, 2nd number: 3/20

18/10 - 3/20 is 33/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20
  2. For the 1st fraction, since 10 × 2 = 20,
    18/10 = 18 × 2/10 × 2 = 36/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    3/20 = 3 × 1/20 × 1 = 3/20
  4. Subtract the two fractions:
    36/20 - 3/20 = 36 - 3/20 = 33/20
  5. In mixed form: 113/20

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