Answers

Add 12/42 and 98/30

1^st number: 12/42, 2^nd number: 3 8/30

12/42 + 98/30 is 373/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   12/42 = 12 × 5/42 × 5 = 60/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   98/30 = 98 × 7/30 × 7 = 686/210
4. Add the two like fractions:
   60/210 + 686/210 = 60 + 686/210 = 746/210
5. 746/210 simplified gives 373/105
6. So, 12/42 + 98/30 = 373/105
   In mixed form: 358/105

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