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Subtract 84/63 from 70/98

1st number: 70/98, 2nd number: 1 21/63

70/98 - 84/63 is -13/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 63 is 882

    Next, find the equivalent fraction of both fractional numbers with denominator 882
  2. For the 1st fraction, since 98 × 9 = 882,
    70/98 = 70 × 9/98 × 9 = 630/882
  3. Likewise, for the 2nd fraction, since 63 × 14 = 882,
    84/63 = 84 × 14/63 × 14 = 1176/882
  4. Subtract the two like fractions:
    630/882 - 1176/882 = 630 - 1176/882 = -546/882
  5. After reducing the fraction, the answer is -13/21

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