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Subtract 21/12 from 8/35

1st number: 8/35, 2nd number: 1 9/12

8/35 - 21/12 is -213/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 12 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 35 × 12 = 420,
    8/35 = 8 × 12/35 × 12 = 96/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    21/12 = 21 × 35/12 × 35 = 735/420
  4. Subtract the two like fractions:
    96/420 - 735/420 = 96 - 735/420 = -639/420
  5. After reducing the fraction, the answer is -213/140

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