Answers

Add 21/14 and 16/81

1^st number: 1 7/14, 2^nd number: 16/81

21/14 + 16/81 is 275/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 81 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 14 × 81 = 1134,
   21/14 = 21 × 81/14 × 81 = 1701/1134
3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
   16/81 = 16 × 14/81 × 14 = 224/1134
4. Add the two like fractions:
   1701/1134 + 224/1134 = 1701 + 224/1134 = 1925/1134
5. 1925/1134 simplified gives 275/162
6. So, 21/14 + 16/81 = 275/162
   In mixed form: 1113/162

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