Answers

Add 84/63 and 25/42

1^st number: 1 21/63, 2^nd number: 25/42

84/63 + 25/42 is 27/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 42 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   84/63 = 84 × 2/63 × 2 = 168/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   25/42 = 25 × 3/42 × 3 = 75/126
4. Add the two like fractions:
   168/126 + 75/126 = 168 + 75/126 = 243/126
5. 243/126 simplified gives 27/14
6. So, 84/63 + 25/42 = 27/14
   In mixed form: 113/14

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