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Subtract 98/80 from 8/70

1st number: 8/70, 2nd number: 1 18/80

8/70 - 98/80 is -311/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560
  2. For the 1st fraction, since 70 × 8 = 560,
    8/70 = 8 × 8/70 × 8 = 64/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    98/80 = 98 × 7/80 × 7 = 686/560
  4. Subtract the two fractions:
    64/560 - 686/560 = 64 - 686/560 = -622/560
  5. After reducing the fraction, the answer is -311/280

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