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Subtract 18/24 from 21/10

1st number: 2 1/10, 2nd number: 18/24

21/10 - 18/24 is 27/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 24 is 120
  2. For the 1st fraction, since 10 × 12 = 120,
    21/10 = 21 × 12/10 × 12 = 252/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    18/24 = 18 × 5/24 × 5 = 90/120
  4. Subtract the two fractions:
    252/120 - 90/120 = 252 - 90/120 = 162/120
  5. After reducing the fraction, the answer is 27/20
  6. In mixed form: 17/20

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