Answers

Add 1/84 and 63/12

1^st number: 1/84, 2^nd number: 5 3/12

1/84 + 63/12 is 221/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 12 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   1/84 = 1 × 1/84 × 1 = 1/84
3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
   63/12 = 63 × 7/12 × 7 = 441/84
4. Add the two like fractions:
   1/84 + 441/84 = 1 + 441/84 = 442/84
5. 442/84 simplified gives 221/42
6. So, 1/84 + 63/12 = 221/42
   In mixed form: 511/42

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