Answers

Add 25/12 and 90/54

1^st number: 2 1/12, 2^nd number: 1 36/54

25/12 + 90/54 is 15/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 54 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 12 × 9 = 108,
   25/12 = 25 × 9/12 × 9 = 225/108
3. Likewise, for the 2nd fraction, since 54 × 2 = 108,
   90/54 = 90 × 2/54 × 2 = 180/108
4. Add the two like fractions:
   225/108 + 180/108 = 225 + 180/108 = 405/108
5. 405/108 simplified gives 15/4
6. So, 25/12 + 90/54 = 15/4
   In mixed form: 33/4

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