Answers

Add 90/45 and 45/28

1^st number: 2 0/45, 2^nd number: 1 17/28

90/45 + 45/28 is 101/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 28 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 45 × 28 = 1260,
   90/45 = 90 × 28/45 × 28 = 2520/1260
3. Likewise, for the 2nd fraction, since 28 × 45 = 1260,
   45/28 = 45 × 45/28 × 45 = 2025/1260
4. Add the two like fractions:
   2520/1260 + 2025/1260 = 2520 + 2025/1260 = 4545/1260
5. 4545/1260 simplified gives 101/28
6. So, 90/45 + 45/28 = 101/28
   In mixed form: 317/28

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