Answers

Add 81/50 and 5/90

1^st number: 1 31/50, 2^nd number: 5/90

81/50 + 5/90 is 377/225.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 50 × 9 = 450,
   81/50 = 81 × 9/50 × 9 = 729/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   5/90 = 5 × 5/90 × 5 = 25/450
4. Add the two like fractions:
   729/450 + 25/450 = 729 + 25/450 = 754/450
5. 754/450 simplified gives 377/225
6. So, 81/50 + 5/90 = 377/225
   In mixed form: 1152/225

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