Answers

Add 81/72 and 56/5

1^st number: 1 9/72, 2^nd number: 11 1/5

81/72 + 56/5 is 493/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 5 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   81/72 = 81 × 5/72 × 5 = 405/360
3. Likewise, for the 2nd fraction, since 5 × 72 = 360,
   56/5 = 56 × 72/5 × 72 = 4032/360
4. Add the two like fractions:
   405/360 + 4032/360 = 405 + 4032/360 = 4437/360
5. 4437/360 simplified gives 493/40
6. So, 81/72 + 56/5 = 493/40
   In mixed form: 1213/40

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