Answers

Add 8/7 and 3/9

1^st number: 1 1/7, 2^nd number: 3/9

8/7 + 3/9 is 31/21.

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,
   8/7 = 8 × 9/7 × 9 = 72/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   3/9 = 3 × 7/9 × 7 = 21/63
4. Add the two fractions:
   72/63 + 21/63 = 72 + 21/63 = 93/63
5. 93/63 simplified gives 31/21
6. So, 8/7 + 3/9 = 31/21
   In mixed form: 110/21

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