Answers

Add 15/18 and 40/54

15/18 + 40/54 is 85/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 54 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 18 × 3 = 54,
   15/18 = 15 × 3/18 × 3 = 45/54
3. Likewise, for the 2nd fraction, since 54 × 1 = 54,
   40/54 = 40 × 1/54 × 1 = 40/54
4. Add the two like fractions:
   45/54 + 40/54 = 45 + 40/54 = 85/54
5. So, 15/18 + 40/54 = 85/54
   In mixed form: 131/54

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