Answers

Add 81/40 and 5/15

1^st number: 2 1/40, 2^nd number: 5/15

81/40 + 5/15 is 283/120.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 15 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   81/40 = 81 × 3/40 × 3 = 243/120
3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
   5/15 = 5 × 8/15 × 8 = 40/120
4. Add the two like fractions:
   243/120 + 40/120 = 243 + 40/120 = 283/120
5. So, 81/40 + 5/15 = 283/120
   In mixed form: 243/120

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