Answers

Add 28/90 and 54/50

1^st number: 28/90, 2^nd number: 1 4/50

28/90 + 54/50 is 313/225.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 50 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 90 × 5 = 450,
   28/90 = 28 × 5/90 × 5 = 140/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   54/50 = 54 × 9/50 × 9 = 486/450
4. Add the two like fractions:
   140/450 + 486/450 = 140 + 486/450 = 626/450
5. 626/450 simplified gives 313/225
6. So, 28/90 + 54/50 = 313/225
   In mixed form: 188/225

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