Answers

Add 40/15 and 42/54

1^st number: 2 10/15, 2^nd number: 42/54

40/15 + 42/54 is 31/9.

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,
   40/15 = 40 × 18/15 × 18 = 720/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   42/54 = 42 × 5/54 × 5 = 210/270
4. Add the two like fractions:
   720/270 + 210/270 = 720 + 210/270 = 930/270
5. 930/270 simplified gives 31/9
6. So, 40/15 + 42/54 = 31/9
   In mixed form: 34/9

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