Answers

Add 81/20 and 21/50

1^st number: 4 1/20, 2^nd number: 21/50

81/20 + 21/50 is 447/100.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 50 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 20 × 5 = 100,
   81/20 = 81 × 5/20 × 5 = 405/100
3. Likewise, for the 2nd fraction, since 50 × 2 = 100,
   21/50 = 21 × 2/50 × 2 = 42/100
4. Add the two like fractions:
   405/100 + 42/100 = 405 + 42/100 = 447/100
5. So, 81/20 + 21/50 = 447/100
   In mixed form: 447/100

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