Answers

Add 90/40 and 45/54

1^st number: 2 10/40, 2^nd number: 45/54

90/40 + 45/54 is 37/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 54 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   90/40 = 90 × 27/40 × 27 = 2430/1080
3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
   45/54 = 45 × 20/54 × 20 = 900/1080
4. Add the two like fractions:
   2430/1080 + 900/1080 = 2430 + 900/1080 = 3330/1080
5. 3330/1080 simplified gives 37/12
6. So, 90/40 + 45/54 = 37/12
   In mixed form: 31/12

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