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Add 5/7 and 7/9

5/7 + 7/9 is 94/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    5/7 = 5 × 9/7 × 9 = 45/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    7/9 = 7 × 7/9 × 7 = 49/63
  4. Add the two fractions:
    45/63 + 49/63 = 45 + 49/63 = 94/63
  5. In mixed form: 131/63

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