Answers

Add 63/54 and 90/28

1^st number: 1 9/54, 2^nd number: 3 6/28

63/54 + 90/28 is 92/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 28 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 54 × 14 = 756,
   63/54 = 63 × 14/54 × 14 = 882/756
3. Likewise, for the 2nd fraction, since 28 × 27 = 756,
   90/28 = 90 × 27/28 × 27 = 2430/756
4. Add the two like fractions:
   882/756 + 2430/756 = 882 + 2430/756 = 3312/756
5. 3312/756 simplified gives 92/21
6. So, 63/54 + 90/28 = 92/21
   In mixed form: 48/21

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