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Subtract 4/30 from 15/84

15/84 - 4/30 is 19/420.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 30 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    15/84 = 15 × 5/84 × 5 = 75/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    4/30 = 4 × 14/30 × 14 = 56/420
  4. Subtract the two like fractions:
    75/420 - 56/420 = 75 - 56/420 = 19/420

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