Answers

Add 63/20 and 18/54

1^st number: 3 3/20, 2^nd number: 18/54

63/20 + 18/54 is 209/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   63/20 = 63 × 27/20 × 27 = 1701/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   18/54 = 18 × 10/54 × 10 = 180/540
4. Add the two like fractions:
   1701/540 + 180/540 = 1701 + 180/540 = 1881/540
5. 1881/540 simplified gives 209/60
6. So, 63/20 + 18/54 = 209/60
   In mixed form: 329/60

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