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Subtract 2/7 from 1/5

1/5 - 2/7 is -3/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 7 is 35
  2. For the 1st fraction, since 5 × 7 = 35,
    1/5 = 1 × 7/5 × 7 = 7/35
  3. Likewise, for the 2nd fraction, since 7 × 5 = 35,
    2/7 = 2 × 5/7 × 5 = 10/35
  4. Subtract the two fractions:
    7/35 - 10/35 = 7 - 10/35 = -3/35

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