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Subtract 21/10 from 90/24

1st number: 3 18/24, 2nd number: 2 1/10

90/24 - 21/10 is 33/20.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 24 × 5 = 120,
    90/24 = 90 × 5/24 × 5 = 450/120
  3. Likewise, for the 2nd fraction, since 10 × 12 = 120,
    21/10 = 21 × 12/10 × 12 = 252/120
  4. Subtract the two like fractions:
    450/120 - 252/120 = 450 - 252/120 = 198/120
  5. After reducing the fraction, the answer is 33/20
  6. In mixed form: 113/20

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