Answers

Add 18/25 and 25/90

18/25 + 25/90 is 449/450.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 25 × 18 = 450,
   18/25 = 18 × 18/25 × 18 = 324/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   25/90 = 25 × 5/90 × 5 = 125/450
4. Add the two like fractions:
   324/450 + 125/450 = 324 + 125/450 = 449/450
5. So, 18/25 + 25/90 = 449/450

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