Answers

Add 4/20 and 64/5

1^st number: 4/20, 2^nd number: 12 4/5

4/20 + 64/5 is 13/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 5 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   4/20 = 4 × 1/20 × 1 = 4/20
3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
   64/5 = 64 × 4/5 × 4 = 256/20
4. Add the two like fractions:
   4/20 + 256/20 = 4 + 256/20 = 260/20
5. 260/20 simplified gives 13/1
6. So, 4/20 + 64/5 = 13/1

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