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Subtract 8/30 from 1/7

1/7 - 8/30 is -13/105.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 7 × 30 = 210,
    1/7 = 1 × 30/7 × 30 = 30/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    8/30 = 8 × 7/30 × 7 = 56/210
  4. Subtract the two like fractions:
    30/210 - 56/210 = 30 - 56/210 = -26/210
  5. After reducing the fraction, the answer is -13/105

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