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Add 2/5 and 7/8

2/5 + 7/8 is 51/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 8 is 40
  2. For the 1st fraction, since 5 × 8 = 40,
    2/5 = 2 × 8/5 × 8 = 16/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    7/8 = 7 × 5/8 × 5 = 35/40
  4. Add the two fractions:
    16/40 + 35/40 = 16 + 35/40 = 51/40
  5. In mixed form: 111/40

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