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Subtract 21/24 from 30/18

1st number: 1 12/18, 2nd number: 21/24

30/18 - 21/24 is 19/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 24 is 72
  2. For the 1st fraction, since 18 × 4 = 72,
    30/18 = 30 × 4/18 × 4 = 120/72
  3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
    21/24 = 21 × 3/24 × 3 = 63/72
  4. Subtract the two fractions:
    120/72 - 63/72 = 120 - 63/72 = 57/72
  5. After reducing the fraction, the answer is 19/24

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