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Subtract 98/70 from 20/75

1st number: 20/75, 2nd number: 1 28/70

20/75 - 98/70 is -17/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 70 is 1050
  2. For the 1st fraction, since 75 × 14 = 1050,
    20/75 = 20 × 14/75 × 14 = 280/1050
  3. Likewise, for the 2nd fraction, since 70 × 15 = 1050,
    98/70 = 98 × 15/70 × 15 = 1470/1050
  4. Subtract the two fractions:
    280/1050 - 1470/1050 = 280 - 1470/1050 = -1190/1050
  5. After reducing the fraction, the answer is -17/15

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