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Subtract 98/10 from 28/30

1st number: 28/30, 2nd number: 9 8/10

28/30 - 98/10 is -133/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 10 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 30 × 1 = 30,
    28/30 = 28 × 1/30 × 1 = 28/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    98/10 = 98 × 3/10 × 3 = 294/30
  4. Subtract the two like fractions:
    28/30 - 294/30 = 28 - 294/30 = -266/30
  5. After reducing the fraction, the answer is -133/15

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