Answers

Add 21/96 and 70/63

1^st number: 21/96, 2^nd number: 1 7/63

21/96 + 70/63 is 383/288.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 96 and 63 is 2016
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2016
2. For the 1st fraction, since 96 × 21 = 2016,
   21/96 = 21 × 21/96 × 21 = 441/2016
3. Likewise, for the 2nd fraction, since 63 × 32 = 2016,
   70/63 = 70 × 32/63 × 32 = 2240/2016
4. Add the two like fractions:
   441/2016 + 2240/2016 = 441 + 2240/2016 = 2681/2016
5. 2681/2016 simplified gives 383/288
6. So, 21/96 + 70/63 = 383/288
   In mixed form: 195/288

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