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Subtract 90/70 from 10/98

1st number: 10/98, 2nd number: 1 20/70

10/98 - 90/70 is -58/49.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 70 is 490
  2. For the 1st fraction, since 98 × 5 = 490,
    10/98 = 10 × 5/98 × 5 = 50/490
  3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
    90/70 = 90 × 7/70 × 7 = 630/490
  4. Subtract the two fractions:
    50/490 - 630/490 = 50 - 630/490 = -580/490
  5. After reducing the fraction, the answer is -58/49

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