Answers

Add 90/25 and 12/72

1^st number: 3 15/25, 2^nd number: 12/72

90/25 + 12/72 is 113/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 72 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 25 × 72 = 1800,
   90/25 = 90 × 72/25 × 72 = 6480/1800
3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
   12/72 = 12 × 25/72 × 25 = 300/1800
4. Add the two like fractions:
   6480/1800 + 300/1800 = 6480 + 300/1800 = 6780/1800
5. 6780/1800 simplified gives 113/30
6. So, 90/25 + 12/72 = 113/30
   In mixed form: 323/30

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