Answers

Add 80/28 and 90/25

1^st number: 2 24/28, 2^nd number: 3 15/25

80/28 + 90/25 is 226/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 25 is 700
   
   Next, find the equivalent fraction of both fractional numbers with denominator 700
2. For the 1st fraction, since 28 × 25 = 700,
   80/28 = 80 × 25/28 × 25 = 2000/700
3. Likewise, for the 2nd fraction, since 25 × 28 = 700,
   90/25 = 90 × 28/25 × 28 = 2520/700
4. Add the two like fractions:
   2000/700 + 2520/700 = 2000 + 2520/700 = 4520/700
5. 4520/700 simplified gives 226/35
6. So, 80/28 + 90/25 = 226/35
   In mixed form: 616/35

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