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Subtract 1/20 from 7/2

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

7/2 - 1/20 is 69/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 2 × 10 = 20,
    7/2 = 7 × 10/2 × 10 = 70/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    1/20 = 1 × 1/20 × 1 = 1/20
  4. Subtract the two like fractions:
    70/20 - 1/20 = 70 - 1/20 = 69/20
  5. In mixed form: 39/20

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