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Subtract 80/14 from 10/21

1st number: 10/21, 2nd number: 5 10/14

10/21 - 80/14 is -110/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 14 is 42
  2. For the 1st fraction, since 21 × 2 = 42,
    10/21 = 10 × 2/21 × 2 = 20/42
  3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
    80/14 = 80 × 3/14 × 3 = 240/42
  4. Subtract the two fractions:
    20/42 - 240/42 = 20 - 240/42 = -220/42
  5. After reducing the fraction, the answer is -110/21

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