Answers

Add 15/54 and 63/20

1^st number: 15/54, 2^nd number: 3 3/20

15/54 + 63/20 is 617/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 54 × 10 = 540,
   15/54 = 15 × 10/54 × 10 = 150/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   63/20 = 63 × 27/20 × 27 = 1701/540
4. Add the two like fractions:
   150/540 + 1701/540 = 150 + 1701/540 = 1851/540
5. 1851/540 simplified gives 617/180
6. So, 15/54 + 63/20 = 617/180
   In mixed form: 377/180

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