Answers

Add 40/12 and 15/54

1^st number: 3 4/12, 2^nd number: 15/54

40/12 + 15/54 is 65/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 54 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 12 × 9 = 108,
   40/12 = 40 × 9/12 × 9 = 360/108
3. Likewise, for the 2nd fraction, since 54 × 2 = 108,
   15/54 = 15 × 2/54 × 2 = 30/108
4. Add the two like fractions:
   360/108 + 30/108 = 360 + 30/108 = 390/108
5. 390/108 simplified gives 65/18
6. So, 40/12 + 15/54 = 65/18
   In mixed form: 311/18

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