Answers

Add 40/12 and 54/63

1^st number: 3 4/12, 2^nd number: 54/63

40/12 + 54/63 is 88/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 63 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 12 × 21 = 252,
   40/12 = 40 × 21/12 × 21 = 840/252
3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
   54/63 = 54 × 4/63 × 4 = 216/252
4. Add the two like fractions:
   840/252 + 216/252 = 840 + 216/252 = 1056/252
5. 1056/252 simplified gives 88/21
6. So, 40/12 + 54/63 = 88/21
   In mixed form: 44/21

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