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Add 5/8 and 4/9

5/8 + 4/9 is 77/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 9 is 72
  2. For the 1st fraction, since 8 × 9 = 72,
    5/8 = 5 × 9/8 × 9 = 45/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    4/9 = 4 × 8/9 × 8 = 32/72
  4. Add the two fractions:
    45/72 + 32/72 = 45 + 32/72 = 77/72
  5. In mixed form: 15/72

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