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Subtract 18/12 from 35/21

1st number: 1 14/21, 2nd number: 1 6/12

35/21 - 18/12 is 1/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    35/21 = 35 × 4/21 × 4 = 140/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    18/12 = 18 × 7/12 × 7 = 126/84
  4. Subtract the two like fractions:
    140/84 - 126/84 = 140 - 126/84 = 14/84
  5. After reducing the fraction, the answer is 1/6

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