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Subtract 8/7 from 3/10

1st number: 3/10, 2nd number: 1 1/7

3/10 - 8/7 is -59/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 7 is 70
  2. For the 1st fraction, since 10 × 7 = 70,
    3/10 = 3 × 7/10 × 7 = 21/70
  3. Likewise, for the 2nd fraction, since 7 × 10 = 70,
    8/7 = 8 × 10/7 × 10 = 80/70
  4. Subtract the two fractions:
    21/70 - 80/70 = 21 - 80/70 = -59/70

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