Answers

Add 20/15 and 84/54

1^st number: 1 5/15, 2^nd number: 1 30/54

20/15 + 84/54 is 26/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 15 × 18 = 270,
   20/15 = 20 × 18/15 × 18 = 360/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   84/54 = 84 × 5/54 × 5 = 420/270
4. Add the two like fractions:
   360/270 + 420/270 = 360 + 420/270 = 780/270
5. 780/270 simplified gives 26/9
6. So, 20/15 + 84/54 = 26/9
   In mixed form: 28/9

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