Answers

Add 81/3 and 60/40

1^st number: 27 0/3, 2^nd number: 1 20/40

81/3 + 60/40 is 57/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 3 × 40 = 120,
   81/3 = 81 × 40/3 × 40 = 3240/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   60/40 = 60 × 3/40 × 3 = 180/120
4. Add the two like fractions:
   3240/120 + 180/120 = 3240 + 180/120 = 3420/120
5. 3420/120 simplified gives 57/2
6. So, 81/3 + 60/40 = 57/2
   In mixed form: 281/2

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