Answers

Add 6/7 and 2/9

6/7 + 2/9 is 68/63.

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,
   6/7 = 6 × 9/7 × 9 = 54/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   2/9 = 2 × 7/9 × 7 = 14/63
4. Add the two fractions:
   54/63 + 14/63 = 54 + 14/63 = 68/63
5. In mixed form: 15/63

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