Answers

Add 27/15 and 54/90

1^st number: 1 12/15, 2^nd number: 54/90

27/15 + 54/90 is 12/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 15 × 6 = 90,
   27/15 = 27 × 6/15 × 6 = 162/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   54/90 = 54 × 1/90 × 1 = 54/90
4. Add the two like fractions:
   162/90 + 54/90 = 162 + 54/90 = 216/90
5. 216/90 simplified gives 12/5
6. So, 27/15 + 54/90 = 12/5
   In mixed form: 22/5

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