Answers

Add 28/12 and 81/90

1^st number: 2 4/12, 2^nd number: 81/90

28/12 + 81/90 is 97/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   28/12 = 28 × 15/12 × 15 = 420/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   81/90 = 81 × 2/90 × 2 = 162/180
4. Add the two like fractions:
   420/180 + 162/180 = 420 + 162/180 = 582/180
5. 582/180 simplified gives 97/30
6. So, 28/12 + 81/90 = 97/30
   In mixed form: 37/30

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