Answers

Add 27/90 and 45/28

1^st number: 27/90, 2^nd number: 1 17/28

27/90 + 45/28 is 267/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 28 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 90 × 14 = 1260,
   27/90 = 27 × 14/90 × 14 = 378/1260
3. Likewise, for the 2nd fraction, since 28 × 45 = 1260,
   45/28 = 45 × 45/28 × 45 = 2025/1260
4. Add the two like fractions:
   378/1260 + 2025/1260 = 378 + 2025/1260 = 2403/1260
5. 2403/1260 simplified gives 267/140
6. So, 27/90 + 45/28 = 267/140
   In mixed form: 1127/140

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