Answers

Add 12/84 and 63/10

1^st number: 12/84, 2^nd number: 6 3/10

12/84 + 63/10 is 451/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 10 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   12/84 = 12 × 5/84 × 5 = 60/420
3. Likewise, for the 2nd fraction, since 10 × 42 = 420,
   63/10 = 63 × 42/10 × 42 = 2646/420
4. Add the two like fractions:
   60/420 + 2646/420 = 60 + 2646/420 = 2706/420
5. 2706/420 simplified gives 451/70
6. So, 12/84 + 63/10 = 451/70
   In mixed form: 631/70

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