Answers

Add 27/12 and 2/21

1^st number: 2 3/12, 2^nd number: 2/21

27/12 + 2/21 is 197/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 21 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   27/12 = 27 × 7/12 × 7 = 189/84
3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
   2/21 = 2 × 4/21 × 4 = 8/84
4. Add the two like fractions:
   189/84 + 8/84 = 189 + 8/84 = 197/84
5. So, 27/12 + 2/21 = 197/84
   In mixed form: 229/84

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