Answers

Add 63/12 and 45/40

1^st number: 5 3/12, 2^nd number: 1 5/40

63/12 + 45/40 is 51/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 12 × 10 = 120,
   63/12 = 63 × 10/12 × 10 = 630/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   45/40 = 45 × 3/40 × 3 = 135/120
4. Add the two like fractions:
   630/120 + 135/120 = 630 + 135/120 = 765/120
5. 765/120 simplified gives 51/8
6. So, 63/12 + 45/40 = 51/8
   In mixed form: 63/8

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