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Subtract 3/42 from 3/10

3/10 - 3/42 is 8/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    3/42 = 3 × 5/42 × 5 = 15/210
  4. Subtract the two like fractions:
    63/210 - 15/210 = 63 - 15/210 = 48/210
  5. After reducing the fraction, the answer is 8/35

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