Answers

Add 49/16 and 72/20

1^st number: 3 1/16, 2^nd number: 3 12/20

49/16 + 72/20 is 533/80.

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,
   49/16 = 49 × 5/16 × 5 = 245/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   72/20 = 72 × 4/20 × 4 = 288/80
4. Add the two like fractions:
   245/80 + 288/80 = 245 + 288/80 = 533/80
5. So, 49/16 + 72/20 = 533/80
   In mixed form: 653/80

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