Answers

Add 42/16 and 70/63

1^st number: 2 10/16, 2^nd number: 1 7/63

42/16 + 70/63 is 269/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 63 is 1008
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1008
2. For the 1st fraction, since 16 × 63 = 1008,
   42/16 = 42 × 63/16 × 63 = 2646/1008
3. Likewise, for the 2nd fraction, since 63 × 16 = 1008,
   70/63 = 70 × 16/63 × 16 = 1120/1008
4. Add the two like fractions:
   2646/1008 + 1120/1008 = 2646 + 1120/1008 = 3766/1008
5. 3766/1008 simplified gives 269/72
6. So, 42/16 + 70/63 = 269/72
   In mixed form: 353/72

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