Answers

Add 45/20 and 56/27

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

45/20 + 56/27 is 467/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 27 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   45/20 = 45 × 27/20 × 27 = 1215/540
3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
   56/27 = 56 × 20/27 × 20 = 1120/540
4. Add the two like fractions:
   1215/540 + 1120/540 = 1215 + 1120/540 = 2335/540
5. 2335/540 simplified gives 467/108
6. So, 45/20 + 56/27 = 467/108
   In mixed form: 435/108

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