Answers

Add 40/10 and 7/81

1^st number: 4 0/10, 2^nd number: 7/81

40/10 + 7/81 is 331/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 10 × 81 = 810,
   40/10 = 40 × 81/10 × 81 = 3240/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   7/81 = 7 × 10/81 × 10 = 70/810
4. Add the two like fractions:
   3240/810 + 70/810 = 3240 + 70/810 = 3310/810
5. 3310/810 simplified gives 331/81
6. So, 40/10 + 7/81 = 331/81
   In mixed form: 47/81

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