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Subtract 21/80 from 28/24

1st number: 1 4/24, 2nd number: 21/80

28/24 - 21/80 is 217/240.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 80 is 240
  2. For the 1st fraction, since 24 × 10 = 240,
    28/24 = 28 × 10/24 × 10 = 280/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    21/80 = 21 × 3/80 × 3 = 63/240
  4. Subtract the two fractions:
    280/240 - 63/240 = 280 - 63/240 = 217/240

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