Answers

Add 63/72 and 80/7

1^st number: 63/72, 2^nd number: 11 3/7

63/72 + 80/7 is 689/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 7 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   63/72 = 63 × 7/72 × 7 = 441/504
3. Likewise, for the 2nd fraction, since 7 × 72 = 504,
   80/7 = 80 × 72/7 × 72 = 5760/504
4. Add the two like fractions:
   441/504 + 5760/504 = 441 + 5760/504 = 6201/504
5. 6201/504 simplified gives 689/56
6. So, 63/72 + 80/7 = 689/56
   In mixed form: 1217/56

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