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Subtract 48/42 from 15/12

1st number: 1 3/12, 2nd number: 1 6/42

15/12 - 48/42 is 3/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 42 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    15/12 = 15 × 7/12 × 7 = 105/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    48/42 = 48 × 2/42 × 2 = 96/84
  4. Subtract the two fractions:
    105/84 - 96/84 = 105 - 96/84 = 9/84
  5. After reducing the fraction, the answer is 3/28

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