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Subtract 15/27 from 2/84

2/84 - 15/27 is -67/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 27 is 756
  2. For the 1st fraction, since 84 × 9 = 756,
    2/84 = 2 × 9/84 × 9 = 18/756
  3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
    15/27 = 15 × 28/27 × 28 = 420/756
  4. Subtract the two fractions:
    18/756 - 420/756 = 18 - 420/756 = -402/756
  5. After reducing the fraction, the answer is -67/126

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