Answers

Add 63/7 and 15/80

1^st number: 9 0/7, 2^nd number: 15/80

63/7 + 15/80 is 147/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 7 × 80 = 560,
   63/7 = 63 × 80/7 × 80 = 5040/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   15/80 = 15 × 7/80 × 7 = 105/560
4. Add the two like fractions:
   5040/560 + 105/560 = 5040 + 105/560 = 5145/560
5. 5145/560 simplified gives 147/16
6. So, 63/7 + 15/80 = 147/16
   In mixed form: 93/16

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