Answers

Add 81/21 and 70/96

1^st number: 3 18/21, 2^nd number: 70/96

81/21 + 70/96 is 1541/336.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 96 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 21 × 32 = 672,
   81/21 = 81 × 32/21 × 32 = 2592/672
3. Likewise, for the 2nd fraction, since 96 × 7 = 672,
   70/96 = 70 × 7/96 × 7 = 490/672
4. Add the two like fractions:
   2592/672 + 490/672 = 2592 + 490/672 = 3082/672
5. 3082/672 simplified gives 1541/336
6. So, 81/21 + 70/96 = 1541/336
   In mixed form: 4197/336

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