Answers

Add 90/27 and 28/45

1^st number: 3 9/27, 2^nd number: 28/45

90/27 + 28/45 is 178/45.

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,
   90/27 = 90 × 5/27 × 5 = 450/135
3. Likewise, for the 2nd fraction, since 45 × 3 = 135,
   28/45 = 28 × 3/45 × 3 = 84/135
4. Add the two like fractions:
   450/135 + 84/135 = 450 + 84/135 = 534/135
5. 534/135 simplified gives 178/45
6. So, 90/27 + 28/45 = 178/45
   In mixed form: 343/45

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