Answers

Add 70/20 and 42/54

1^st number: 3 10/20, 2^nd number: 42/54

70/20 + 42/54 is 77/18.

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,
   70/20 = 70 × 27/20 × 27 = 1890/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   42/54 = 42 × 10/54 × 10 = 420/540
4. Add the two like fractions:
   1890/540 + 420/540 = 1890 + 420/540 = 2310/540
5. 2310/540 simplified gives 77/18
6. So, 70/20 + 42/54 = 77/18
   In mixed form: 45/18

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