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Subtract 4/10 from 3/15

3/15 - 4/10 is -1/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 10 is 30
  2. For the 1st fraction, since 15 × 2 = 30,
    3/15 = 3 × 2/15 × 2 = 6/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    4/10 = 4 × 3/10 × 3 = 12/30
  4. Subtract the two fractions:
    6/30 - 12/30 = 6 - 12/30 = -6/30
  5. After reducing the fraction, the answer is -1/5

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