Answers

Add 63/21 and 12/54

1^st number: 3 0/21, 2^nd number: 12/54

63/21 + 12/54 is 29/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 21 × 18 = 378,
   63/21 = 63 × 18/21 × 18 = 1134/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   12/54 = 12 × 7/54 × 7 = 84/378
4. Add the two like fractions:
   1134/378 + 84/378 = 1134 + 84/378 = 1218/378
5. 1218/378 simplified gives 29/9
6. So, 63/21 + 12/54 = 29/9
   In mixed form: 32/9

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