Answers

Add 30/12 and 21/42

1^st number: 2 6/12, 2^nd number: 21/42

30/12 + 21/42 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   30/12 = 30 × 7/12 × 7 = 210/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   21/42 = 21 × 2/42 × 2 = 42/84
4. Add the two like fractions:
   210/84 + 42/84 = 210 + 42/84 = 252/84
5. 252/84 simplified gives 3/1
6. So, 30/12 + 21/42 = 3/1

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