Answers

Add 72/27 and 90/80

1^st number: 2 18/27, 2^nd number: 1 10/80

72/27 + 90/80 is 91/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 80 is 2160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2160
2. For the 1st fraction, since 27 × 80 = 2160,
   72/27 = 72 × 80/27 × 80 = 5760/2160
3. Likewise, for the 2nd fraction, since 80 × 27 = 2160,
   90/80 = 90 × 27/80 × 27 = 2430/2160
4. Add the two like fractions:
   5760/2160 + 2430/2160 = 5760 + 2430/2160 = 8190/2160
5. 8190/2160 simplified gives 91/24
6. So, 72/27 + 90/80 = 91/24
   In mixed form: 319/24

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