Answers

Add 63/8 and 90/80

1^st number: 7 7/8, 2^nd number: 1 10/80

63/8 + 90/80 is 9/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 8 × 10 = 80,
   63/8 = 63 × 10/8 × 10 = 630/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   90/80 = 90 × 1/80 × 1 = 90/80
4. Add the two like fractions:
   630/80 + 90/80 = 630 + 90/80 = 720/80
5. 720/80 simplified gives 9/1
6. So, 63/8 + 90/80 = 9/1

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