Answers

Add 28/16 and 81/60

1^st number: 1 12/16, 2^nd number: 1 21/60

28/16 + 81/60 is 31/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 60 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 16 × 15 = 240,
   28/16 = 28 × 15/16 × 15 = 420/240
3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
   81/60 = 81 × 4/60 × 4 = 324/240
4. Add the two like fractions:
   420/240 + 324/240 = 420 + 324/240 = 744/240
5. 744/240 simplified gives 31/10
6. So, 28/16 + 81/60 = 31/10
   In mixed form: 31/10

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