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Subtract 21/18 from 15/6

1st number: 2 3/6, 2nd number: 1 3/18

15/6 - 21/18 is 4/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 18 is 18
  2. For the 1st fraction, since 6 × 3 = 18,
    15/6 = 15 × 3/6 × 3 = 45/18
  3. Likewise, for the 2nd fraction, since 18 × 1 = 18,
    21/18 = 21 × 1/18 × 1 = 21/18
  4. Subtract the two fractions:
    45/18 - 21/18 = 45 - 21/18 = 24/18
  5. After reducing the fraction, the answer is 4/3
  6. In mixed form: 11/3

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