Answers

Add 42/20 and 42/54

1^st number: 2 2/20, 2^nd number: 42/54

42/20 + 42/54 is 259/90.

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,
   42/20 = 42 × 27/20 × 27 = 1134/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   42/54 = 42 × 10/54 × 10 = 420/540
4. Add the two like fractions:
   1134/540 + 420/540 = 1134 + 420/540 = 1554/540
5. 1554/540 simplified gives 259/90
6. So, 42/20 + 42/54 = 259/90
   In mixed form: 279/90

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