Answers

Add 25/9 and 54/16

1^st number: 2 7/9, 2^nd number: 3 6/16

25/9 + 54/16 is 443/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 16 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 9 × 16 = 144,
   25/9 = 25 × 16/9 × 16 = 400/144
3. Likewise, for the 2nd fraction, since 16 × 9 = 144,
   54/16 = 54 × 9/16 × 9 = 486/144
4. Add the two like fractions:
   400/144 + 486/144 = 400 + 486/144 = 886/144
5. 886/144 simplified gives 443/72
6. So, 25/9 + 54/16 = 443/72
   In mixed form: 611/72

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