Answers

Add 63/16 and 56/20

1^st number: 3 15/16, 2^nd number: 2 16/20

63/16 + 56/20 is 539/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 16 × 5 = 80,
   63/16 = 63 × 5/16 × 5 = 315/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   56/20 = 56 × 4/20 × 4 = 224/80
4. Add the two like fractions:
   315/80 + 224/80 = 315 + 224/80 = 539/80
5. So, 63/16 + 56/20 = 539/80
   In mixed form: 659/80

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