Answers

Add 12/7 and 9/80

1^st number: 1 5/7, 2^nd number: 9/80

12/7 + 9/80 is 1023/560.

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,
   12/7 = 12 × 80/7 × 80 = 960/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   9/80 = 9 × 7/80 × 7 = 63/560
4. Add the two like fractions:
   960/560 + 63/560 = 960 + 63/560 = 1023/560
5. So, 12/7 + 9/80 = 1023/560
   In mixed form: 1463/560

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