Answers

Add 42/16 and 70/54

1^st number: 2 10/16, 2^nd number: 1 16/54

42/16 + 70/54 is 847/216.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 54 is 432
   
   Next, find the equivalent fraction of both fractional numbers with denominator 432
2. For the 1st fraction, since 16 × 27 = 432,
   42/16 = 42 × 27/16 × 27 = 1134/432
3. Likewise, for the 2nd fraction, since 54 × 8 = 432,
   70/54 = 70 × 8/54 × 8 = 560/432
4. Add the two like fractions:
   1134/432 + 560/432 = 1134 + 560/432 = 1694/432
5. 1694/432 simplified gives 847/216
6. So, 42/16 + 70/54 = 847/216
   In mixed form: 3199/216

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