Answers

Add 25/9 and 18/21

1^st number: 2 7/9, 2^nd number: 18/21

25/9 + 18/21 is 229/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 21 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 9 × 7 = 63,
   25/9 = 25 × 7/9 × 7 = 175/63
3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
   18/21 = 18 × 3/21 × 3 = 54/63
4. Add the two like fractions:
   175/63 + 54/63 = 175 + 54/63 = 229/63
5. So, 25/9 + 18/21 = 229/63
   In mixed form: 340/63

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