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Subtract 5/42 from 3/10

3/10 - 5/42 is 19/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    3/10 = 3 × 21/10 × 21 = 63/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    5/42 = 5 × 5/42 × 5 = 25/210
  4. Subtract the two fractions:
    63/210 - 25/210 = 63 - 25/210 = 38/210
  5. After reducing the fraction, the answer is 19/105

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