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Subtract 60/70 from 30/98

30/98 - 60/70 is -27/49.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 70 is 490

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 98 × 5 = 490,
    30/98 = 30 × 5/98 × 5 = 150/490
  3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
    60/70 = 60 × 7/70 × 7 = 420/490
  4. Subtract the two like fractions:
    150/490 - 420/490 = 150 - 420/490 = -270/490
  5. After reducing the fraction, the answer is -27/49

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