Answers

Add 63/4 and 70/80

1^st number: 15 3/4, 2^nd number: 70/80

63/4 + 70/80 is 133/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 4 × 20 = 80,
   63/4 = 63 × 20/4 × 20 = 1260/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   70/80 = 70 × 1/80 × 1 = 70/80
4. Add the two like fractions:
   1260/80 + 70/80 = 1260 + 70/80 = 1330/80
5. 1330/80 simplified gives 133/8
6. So, 63/4 + 70/80 = 133/8
   In mixed form: 165/8

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