Answers

Add 21/20 and 16/4

1^st number: 1 1/20, 2^nd number: 4 0/4

21/20 + 16/4 is 101/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 4 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   21/20 = 21 × 1/20 × 1 = 21/20
3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
   16/4 = 16 × 5/4 × 5 = 80/20
4. Add the two like fractions:
   21/20 + 80/20 = 21 + 80/20 = 101/20
5. So, 21/20 + 16/4 = 101/20
   In mixed form: 51/20

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