Answers

Add 90/25 and 25/28

1^st number: 3 15/25, 2^nd number: 25/28

90/25 + 25/28 is 629/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 28 is 700
   
   Next, find the equivalent fraction of both fractional numbers with denominator 700
2. For the 1st fraction, since 25 × 28 = 700,
   90/25 = 90 × 28/25 × 28 = 2520/700
3. Likewise, for the 2nd fraction, since 28 × 25 = 700,
   25/28 = 25 × 25/28 × 25 = 625/700
4. Add the two like fractions:
   2520/700 + 625/700 = 2520 + 625/700 = 3145/700
5. 3145/700 simplified gives 629/140
6. So, 90/25 + 25/28 = 629/140
   In mixed form: 469/140

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