Answers

Add 18/15 and 45/54

1^st number: 1 3/15, 2^nd number: 45/54

18/15 + 45/54 is 61/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 15 × 18 = 270,
   18/15 = 18 × 18/15 × 18 = 324/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   45/54 = 45 × 5/54 × 5 = 225/270
4. Add the two like fractions:
   324/270 + 225/270 = 324 + 225/270 = 549/270
5. 549/270 simplified gives 61/30
6. So, 18/15 + 45/54 = 61/30
   In mixed form: 21/30

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