Answers

Add 81/72 and 80/14

1^st number: 1 9/72, 2^nd number: 5 10/14

81/72 + 80/14 is 383/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 14 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   81/72 = 81 × 7/72 × 7 = 567/504
3. Likewise, for the 2nd fraction, since 14 × 36 = 504,
   80/14 = 80 × 36/14 × 36 = 2880/504
4. Add the two like fractions:
   567/504 + 2880/504 = 567 + 2880/504 = 3447/504
5. 3447/504 simplified gives 383/56
6. So, 81/72 + 80/14 = 383/56
   In mixed form: 647/56

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