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Subtract 2/5 from 7/8

7/8 - 2/5 is 19/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 5 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    7/8 = 7 × 5/8 × 5 = 35/40
  3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
    2/5 = 2 × 8/5 × 8 = 16/40
  4. Subtract the two fractions:
    35/40 - 16/40 = 35 - 16/40 = 19/40

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