Answers

Add 81/42 and 70/96

1^st number: 1 39/42, 2^nd number: 70/96

81/42 + 70/96 is 893/336.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 96 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 42 × 16 = 672,
   81/42 = 81 × 16/42 × 16 = 1296/672
3. Likewise, for the 2nd fraction, since 96 × 7 = 672,
   70/96 = 70 × 7/96 × 7 = 490/672
4. Add the two like fractions:
   1296/672 + 490/672 = 1296 + 490/672 = 1786/672
5. 1786/672 simplified gives 893/336
6. So, 81/42 + 70/96 = 893/336
   In mixed form: 2221/336

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