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Subtract 3/15 from 30/20

1st number: 1 10/20, 2nd number: 3/15

30/20 - 3/15 is 13/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 15 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    30/20 = 30 × 3/20 × 3 = 90/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    3/15 = 3 × 4/15 × 4 = 12/60
  4. Subtract the two like fractions:
    90/60 - 12/60 = 90 - 12/60 = 78/60
  5. After reducing the fraction, the answer is 13/10
  6. In mixed form: 13/10

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