Answers

Add 20/7 and 10/9

1^st number: 2 6/7, 2^nd number: 1 1/9

20/7 + 10/9 is 250/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 9 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 7 × 9 = 63,
   20/7 = 20 × 9/7 × 9 = 180/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   10/9 = 10 × 7/9 × 7 = 70/63
4. Add the two like fractions:
   180/63 + 70/63 = 180 + 70/63 = 250/63
5. So, 20/7 + 10/9 = 250/63
   In mixed form: 361/63

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