Answers

Add 54/27 and 18/20

1^st number: 2 0/27, 2^nd number: 18/20

54/27 + 18/20 is 29/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 27 × 20 = 540,
   54/27 = 54 × 20/27 × 20 = 1080/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   18/20 = 18 × 27/20 × 27 = 486/540
4. Add the two like fractions:
   1080/540 + 486/540 = 1080 + 486/540 = 1566/540
5. 1566/540 simplified gives 29/10
6. So, 54/27 + 18/20 = 29/10
   In mixed form: 29/10

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