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Subtract 9/98 from 30/70

30/70 - 9/98 is 33/98.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 70 × 7 = 490,
    30/70 = 30 × 7/70 × 7 = 210/490
  3. Likewise, for the 2nd fraction, since 98 × 5 = 490,
    9/98 = 9 × 5/98 × 5 = 45/490
  4. Subtract the two like fractions:
    210/490 - 45/490 = 210 - 45/490 = 165/490
  5. After reducing the fraction, the answer is 33/98

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