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Subtract 5/42 from 3/70

3/70 - 5/42 is -8/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 70 × 3 = 210,
    3/70 = 3 × 3/70 × 3 = 9/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    5/42 = 5 × 5/42 × 5 = 25/210
  4. Subtract the two like fractions:
    9/210 - 25/210 = 9 - 25/210 = -16/210
  5. After reducing the fraction, the answer is -8/105

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