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Subtract 3/36 from 30/42

30/42 - 3/36 is 53/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 36 is 252
  2. For the 1st fraction, since 42 × 6 = 252,
    30/42 = 30 × 6/42 × 6 = 180/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    3/36 = 3 × 7/36 × 7 = 21/252
  4. Subtract the two fractions:
    180/252 - 21/252 = 180 - 21/252 = 159/252
  5. After reducing the fraction, the answer is 53/84

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