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Subtract 21/80 from 10/2

1st number: 5 0/2, 2nd number: 21/80

10/2 - 21/80 is 379/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 80 is 80
  2. For the 1st fraction, since 2 × 40 = 80,
    10/2 = 10 × 40/2 × 40 = 400/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    21/80 = 21 × 1/80 × 1 = 21/80
  4. Subtract the two fractions:
    400/80 - 21/80 = 400 - 21/80 = 379/80
  5. In mixed form: 459/80

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