Answers

Add 30/24 and 21/42

1^st number: 1 6/24, 2^nd number: 21/42

30/24 + 21/42 is 7/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 42 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 24 × 7 = 168,
   30/24 = 30 × 7/24 × 7 = 210/168
3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
   21/42 = 21 × 4/42 × 4 = 84/168
4. Add the two like fractions:
   210/168 + 84/168 = 210 + 84/168 = 294/168
5. 294/168 simplified gives 7/4
6. So, 30/24 + 21/42 = 7/4
   In mixed form: 13/4

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