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Subtract 90/24 from 18/10

1st number: 1 8/10, 2nd number: 3 18/24

18/10 - 90/24 is -39/20.

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,
    18/10 = 18 × 12/10 × 12 = 216/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    90/24 = 90 × 5/24 × 5 = 450/120
  4. Subtract the two like fractions:
    216/120 - 450/120 = 216 - 450/120 = -234/120
  5. After reducing the fraction, the answer is -39/20

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