Answers

Add 81/27 and 90/45

1^st number: 3 0/27, 2^nd number: 2 0/45

81/27 + 90/45 is 5/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 45 is 135
   
   Next, find the equivalent fraction of both fractional numbers with denominator 135
2. For the 1st fraction, since 27 × 5 = 135,
   81/27 = 81 × 5/27 × 5 = 405/135
3. Likewise, for the 2nd fraction, since 45 × 3 = 135,
   90/45 = 90 × 3/45 × 3 = 270/135
4. Add the two like fractions:
   405/135 + 270/135 = 405 + 270/135 = 675/135
5. 675/135 simplified gives 5/1
6. So, 81/27 + 90/45 = 5/1

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