Answers

Add 30/27 and 45/20

1^st number: 1 3/27, 2^nd number: 2 5/20

30/27 + 45/20 is 121/36.

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,
   30/27 = 30 × 20/27 × 20 = 600/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   45/20 = 45 × 27/20 × 27 = 1215/540
4. Add the two like fractions:
   600/540 + 1215/540 = 600 + 1215/540 = 1815/540
5. 1815/540 simplified gives 121/36
6. So, 30/27 + 45/20 = 121/36
   In mixed form: 313/36

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