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Subtract 42/50 from 4/15

4/15 - 42/50 is -43/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 50 is 150
  2. For the 1st fraction, since 15 × 10 = 150,
    4/15 = 4 × 10/15 × 10 = 40/150
  3. Likewise, for the 2nd fraction, since 50 × 3 = 150,
    42/50 = 42 × 3/50 × 3 = 126/150
  4. Subtract the two fractions:
    40/150 - 126/150 = 40 - 126/150 = -86/150
  5. After reducing the fraction, the answer is -43/75

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