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Subtract 12/15 from 42/14

1st number: 3 0/14, 2nd number: 12/15

42/14 - 12/15 is 11/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 15 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 14 × 15 = 210,
    42/14 = 42 × 15/14 × 15 = 630/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    12/15 = 12 × 14/15 × 14 = 168/210
  4. Subtract the two like fractions:
    630/210 - 168/210 = 630 - 168/210 = 462/210
  5. After reducing the fraction, the answer is 11/5
  6. In mixed form: 21/5

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