Answers

Add 48/81 and 21/12

1^st number: 48/81, 2^nd number: 1 9/12

48/81 + 21/12 is 253/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 12 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   48/81 = 48 × 4/81 × 4 = 192/324
3. Likewise, for the 2nd fraction, since 12 × 27 = 324,
   21/12 = 21 × 27/12 × 27 = 567/324
4. Add the two like fractions:
   192/324 + 567/324 = 192 + 567/324 = 759/324
5. 759/324 simplified gives 253/108
6. So, 48/81 + 21/12 = 253/108
   In mixed form: 237/108

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