Answers

Add 84/42 and 15/24

1^st number: 2 0/42, 2^nd number: 15/24

84/42 + 15/24 is 21/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 24 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 42 × 4 = 168,
   84/42 = 84 × 4/42 × 4 = 336/168
3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
   15/24 = 15 × 7/24 × 7 = 105/168
4. Add the two like fractions:
   336/168 + 105/168 = 336 + 105/168 = 441/168
5. 441/168 simplified gives 21/8
6. So, 84/42 + 15/24 = 21/8
   In mixed form: 25/8

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