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Subtract 12/10 from 3/15

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

3/15 - 12/10 is -1/1.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 10 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 15 × 2 = 30,
    3/15 = 3 × 2/15 × 2 = 6/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    12/10 = 12 × 3/10 × 3 = 36/30
  4. Subtract the two like fractions:
    6/30 - 36/30 = 6 - 36/30 = -30/30
  5. After reducing the fraction, the answer is -1/1

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