Answers

Add 7/63 and 45/12

1^st number: 7/63, 2^nd number: 3 9/12

7/63 + 45/12 is 139/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 12 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   7/63 = 7 × 4/63 × 4 = 28/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   45/12 = 45 × 21/12 × 21 = 945/252
4. Add the two like fractions:
   28/252 + 945/252 = 28 + 945/252 = 973/252
5. 973/252 simplified gives 139/36
6. So, 7/63 + 45/12 = 139/36
   In mixed form: 331/36

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