Answers

Add 15/54 and 70/40

1^st number: 15/54, 2^nd number: 1 30/40

15/54 + 70/40 is 73/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 54 × 20 = 1080,
   15/54 = 15 × 20/54 × 20 = 300/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   70/40 = 70 × 27/40 × 27 = 1890/1080
4. Add the two like fractions:
   300/1080 + 1890/1080 = 300 + 1890/1080 = 2190/1080
5. 2190/1080 simplified gives 73/36
6. So, 15/54 + 70/40 = 73/36
   In mixed form: 21/36

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