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Subtract 70/63 from 6/84

1st number: 6/84, 2nd number: 1 7/63

6/84 - 70/63 is -131/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 63 is 252
  2. For the 1st fraction, since 84 × 3 = 252,
    6/84 = 6 × 3/84 × 3 = 18/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    70/63 = 70 × 4/63 × 4 = 280/252
  4. Subtract the two fractions:
    18/252 - 280/252 = 18 - 280/252 = -262/252
  5. After reducing the fraction, the answer is -131/126

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