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Subtract 21/9 from 3/5

1st number: 3/5, 2nd number: 2 3/9

3/5 - 21/9 is -26/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 9 is 45
  2. For the 1st fraction, since 5 × 9 = 45,
    3/5 = 3 × 9/5 × 9 = 27/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    21/9 = 21 × 5/9 × 5 = 105/45
  4. Subtract the two fractions:
    27/45 - 105/45 = 27 - 105/45 = -78/45
  5. After reducing the fraction, the answer is -26/15

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