Answers

Add 25/20 and 70/54

1^st number: 1 5/20, 2^nd number: 1 16/54

25/20 + 70/54 is 275/108.

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,
   25/20 = 25 × 27/20 × 27 = 675/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   70/54 = 70 × 10/54 × 10 = 700/540
4. Add the two like fractions:
   675/540 + 700/540 = 675 + 700/540 = 1375/540
5. 1375/540 simplified gives 275/108
6. So, 25/20 + 70/54 = 275/108
   In mixed form: 259/108

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