Answers

Add 80/20 and 21/54

1^st number: 4 0/20, 2^nd number: 21/54

80/20 + 21/54 is 79/18.

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,
   80/20 = 80 × 27/20 × 27 = 2160/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   21/54 = 21 × 10/54 × 10 = 210/540
4. Add the two like fractions:
   2160/540 + 210/540 = 2160 + 210/540 = 2370/540
5. 2370/540 simplified gives 79/18
6. So, 80/20 + 21/54 = 79/18
   In mixed form: 47/18

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