Answers

Add 1/21 and 25/9

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

1/21 + 25/9 is 178/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 9 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 21 × 3 = 63,
   1/21 = 1 × 3/21 × 3 = 3/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   25/9 = 25 × 7/9 × 7 = 175/63
4. Add the two like fractions:
   3/63 + 175/63 = 3 + 175/63 = 178/63
5. So, 1/21 + 25/9 = 178/63
   In mixed form: 252/63

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