Answers

Add 4/84 and 75/63

1^st number: 4/84, 2^nd number: 1 12/63

4/84 + 75/63 is 26/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   4/84 = 4 × 3/84 × 3 = 12/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   75/63 = 75 × 4/63 × 4 = 300/252
4. Add the two like fractions:
   12/252 + 300/252 = 12 + 300/252 = 312/252
5. 312/252 simplified gives 26/21
6. So, 4/84 + 75/63 = 26/21
   In mixed form: 15/21

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