Answers

Add 63/7 and 90/54

1^st number: 9 0/7, 2^nd number: 1 36/54

63/7 + 90/54 is 32/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 7 × 54 = 378,
   63/7 = 63 × 54/7 × 54 = 3402/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   90/54 = 90 × 7/54 × 7 = 630/378
4. Add the two like fractions:
   3402/378 + 630/378 = 3402 + 630/378 = 4032/378
5. 4032/378 simplified gives 32/3
6. So, 63/7 + 90/54 = 32/3
   In mixed form: 102/3

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