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Subtract 6/30 from 4/42

4/42 - 6/30 is -11/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 30 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    4/42 = 4 × 5/42 × 5 = 20/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    6/30 = 6 × 7/30 × 7 = 42/210
  4. Subtract the two fractions:
    20/210 - 42/210 = 20 - 42/210 = -22/210
  5. After reducing the fraction, the answer is -11/105

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