Answers

Add 72/27 and 81/40

1^st number: 2 18/27, 2^nd number: 2 1/40

72/27 + 81/40 is 563/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 27 × 40 = 1080,
   72/27 = 72 × 40/27 × 40 = 2880/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   81/40 = 81 × 27/40 × 27 = 2187/1080
4. Add the two like fractions:
   2880/1080 + 2187/1080 = 2880 + 2187/1080 = 5067/1080
5. 5067/1080 simplified gives 563/120
6. So, 72/27 + 81/40 = 563/120
   In mixed form: 483/120

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