Answers

Add 84/54 and 70/20

1^st number: 1 30/54, 2^nd number: 3 10/20

84/54 + 70/20 is 91/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 54 × 10 = 540,
   84/54 = 84 × 10/54 × 10 = 840/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   70/20 = 70 × 27/20 × 27 = 1890/540
4. Add the two like fractions:
   840/540 + 1890/540 = 840 + 1890/540 = 2730/540
5. 2730/540 simplified gives 91/18
6. So, 84/54 + 70/20 = 91/18
   In mixed form: 51/18

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