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Subtract 18/48 from 30/84

30/84 - 18/48 is -1/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 48 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 84 × 4 = 336,
    30/84 = 30 × 4/84 × 4 = 120/336
  3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
    18/48 = 18 × 7/48 × 7 = 126/336
  4. Subtract the two like fractions:
    120/336 - 126/336 = 120 - 126/336 = -6/336
  5. After reducing the fraction, the answer is -1/56

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