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Subtract 36/10 from 15/42

1st number: 15/42, 2nd number: 3 6/10

15/42 - 36/10 is -227/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 10 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    15/42 = 15 × 5/42 × 5 = 75/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    36/10 = 36 × 21/10 × 21 = 756/210
  4. Subtract the two fractions:
    75/210 - 756/210 = 75 - 756/210 = -681/210
  5. After reducing the fraction, the answer is -227/70

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