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Subtract 1/7 from 2/5

2/5 - 1/7 is 9/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 7 is 35

    Next, find the equivalent fraction of both fractional numbers with denominator 35
  2. For the 1st fraction, since 5 × 7 = 35,
    2/5 = 2 × 7/5 × 7 = 14/35
  3. Likewise, for the 2nd fraction, since 7 × 5 = 35,
    1/7 = 1 × 5/7 × 5 = 5/35
  4. Subtract the two like fractions:
    14/35 - 5/35 = 14 - 5/35 = 9/35

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