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Subtract 30/20 from 3/15

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

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

Steps for subtracting fractions

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

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

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