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Subtract 16/40 from 20/30

20/30 - 16/40 is 4/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120
  2. For the 1st fraction, since 30 × 4 = 120,
    20/30 = 20 × 4/30 × 4 = 80/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    16/40 = 16 × 3/40 × 3 = 48/120
  4. Subtract the two fractions:
    80/120 - 48/120 = 80 - 48/120 = 32/120
  5. After reducing the fraction, the answer is 4/15

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