Answers

Add 72/81 and 16/10

1^st number: 72/81, 2^nd number: 1 6/10

72/81 + 16/10 is 112/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 10 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 81 × 10 = 810,
   72/81 = 72 × 10/81 × 10 = 720/810
3. Likewise, for the 2nd fraction, since 10 × 81 = 810,
   16/10 = 16 × 81/10 × 81 = 1296/810
4. Add the two like fractions:
   720/810 + 1296/810 = 720 + 1296/810 = 2016/810
5. 2016/810 simplified gives 112/45
6. So, 72/81 + 16/10 = 112/45
   In mixed form: 222/45

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