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Subtract 54/24 from 21/10

1st number: 2 1/10, 2nd number: 2 6/24

21/10 - 54/24 is -3/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 24 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    54/24 = 54 × 5/24 × 5 = 270/120
  4. Subtract the two like fractions:
    252/120 - 270/120 = 252 - 270/120 = -18/120
  5. After reducing the fraction, the answer is -3/20

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