Answers

Add 90/25 and 70/54

1^st number: 3 15/25, 2^nd number: 1 16/54

90/25 + 70/54 is 661/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 54 is 1350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1350
2. For the 1st fraction, since 25 × 54 = 1350,
   90/25 = 90 × 54/25 × 54 = 4860/1350
3. Likewise, for the 2nd fraction, since 54 × 25 = 1350,
   70/54 = 70 × 25/54 × 25 = 1750/1350
4. Add the two like fractions:
   4860/1350 + 1750/1350 = 4860 + 1750/1350 = 6610/1350
5. 6610/1350 simplified gives 661/135
6. So, 90/25 + 70/54 = 661/135
   In mixed form: 4121/135

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