Answers

Add 28/25 and 90/84

1^st number: 1 3/25, 2^nd number: 1 6/84

28/25 + 90/84 is 767/350.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 84 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 25 × 84 = 2100,
   28/25 = 28 × 84/25 × 84 = 2352/2100
3. Likewise, for the 2nd fraction, since 84 × 25 = 2100,
   90/84 = 90 × 25/84 × 25 = 2250/2100
4. Add the two like fractions:
   2352/2100 + 2250/2100 = 2352 + 2250/2100 = 4602/2100
5. 4602/2100 simplified gives 767/350
6. So, 28/25 + 90/84 = 767/350
   In mixed form: 267/350

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