Answers

Add 75/12 and 81/40

1^st number: 6 3/12, 2^nd number: 2 1/40

75/12 + 81/40 is 331/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 12 × 10 = 120,
   75/12 = 75 × 10/12 × 10 = 750/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   81/40 = 81 × 3/40 × 3 = 243/120
4. Add the two like fractions:
   750/120 + 243/120 = 750 + 243/120 = 993/120
5. 993/120 simplified gives 331/40
6. So, 75/12 + 81/40 = 331/40
   In mixed form: 811/40

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