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Subtract 4/7 from 18/30

18/30 - 4/7 is 1/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    18/30 = 18 × 7/30 × 7 = 126/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    4/7 = 4 × 30/7 × 30 = 120/210
  4. Subtract the two like fractions:
    126/210 - 120/210 = 126 - 120/210 = 6/210
  5. After reducing the fraction, the answer is 1/35

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