Answers

Add 48/27 and 81/40

1^st number: 1 21/27, 2^nd number: 2 1/40

48/27 + 81/40 is 1369/360.

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,
   48/27 = 48 × 40/27 × 40 = 1920/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   81/40 = 81 × 27/40 × 27 = 2187/1080
4. Add the two like fractions:
   1920/1080 + 2187/1080 = 1920 + 2187/1080 = 4107/1080
5. 4107/1080 simplified gives 1369/360
6. So, 48/27 + 81/40 = 1369/360
   In mixed form: 3289/360

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