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Subtract 10/42 from 18/35

18/35 - 10/42 is 29/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 42 is 210
  2. For the 1st fraction, since 35 × 6 = 210,
    18/35 = 18 × 6/35 × 6 = 108/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    10/42 = 10 × 5/42 × 5 = 50/210
  4. Subtract the two fractions:
    108/210 - 50/210 = 108 - 50/210 = 58/210
  5. After reducing the fraction, the answer is 29/105

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