Answers

Add 7/28 and 84/54

1^st number: 7/28, 2^nd number: 1 30/54

7/28 + 84/54 is 65/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 28 × 27 = 756,
   7/28 = 7 × 27/28 × 27 = 189/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   84/54 = 84 × 14/54 × 14 = 1176/756
4. Add the two like fractions:
   189/756 + 1176/756 = 189 + 1176/756 = 1365/756
5. 1365/756 simplified gives 65/36
6. So, 7/28 + 84/54 = 65/36
   In mixed form: 129/36

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