Answers

Add 81/4 and 8/10

1^st number: 20 1/4, 2^nd number: 8/10

81/4 + 8/10 is 421/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 10 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 4 × 5 = 20,
   81/4 = 81 × 5/4 × 5 = 405/20
3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
   8/10 = 8 × 2/10 × 2 = 16/20
4. Add the two like fractions:
   405/20 + 16/20 = 405 + 16/20 = 421/20
5. So, 81/4 + 8/10 = 421/20
   In mixed form: 211/20

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