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Add 1/7 and 1/9

1/7 + 1/9 is 16/63.

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,
    1/7 = 1 × 9/7 × 9 = 9/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    1/9 = 1 × 7/9 × 7 = 7/63
  4. Add the two fractions:
    9/63 + 7/63 = 9 + 7/63 = 16/63

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