Answers

Add 63/10 and 72/84

1^st number: 6 3/10, 2^nd number: 72/84

63/10 + 72/84 is 501/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 10 × 42 = 420,
   63/10 = 63 × 42/10 × 42 = 2646/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   72/84 = 72 × 5/84 × 5 = 360/420
4. Add the two like fractions:
   2646/420 + 360/420 = 2646 + 360/420 = 3006/420
5. 3006/420 simplified gives 501/70
6. So, 63/10 + 72/84 = 501/70
   In mixed form: 711/70

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