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Subtract 30/84 from 2/54

2/54 - 30/84 is -121/378.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 84 is 756
  2. For the 1st fraction, since 54 × 14 = 756,
    2/54 = 2 × 14/54 × 14 = 28/756
  3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
    30/84 = 30 × 9/84 × 9 = 270/756
  4. Subtract the two fractions:
    28/756 - 270/756 = 28 - 270/756 = -242/756
  5. After reducing the fraction, the answer is -121/378

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