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Subtract 4/10 from 8/30

8/30 - 4/10 is -2/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 10 is 30
  2. For the 1st fraction, since 30 × 1 = 30,
    8/30 = 8 × 1/30 × 1 = 8/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    4/10 = 4 × 3/10 × 3 = 12/30
  4. Subtract the two fractions:
    8/30 - 12/30 = 8 - 12/30 = -4/30
  5. After reducing the fraction, the answer is -2/15

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