Answers

Add 84/27 and 12/90

1^st number: 3 3/27, 2^nd number: 12/90

84/27 + 12/90 is 146/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 90 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 27 × 10 = 270,
   84/27 = 84 × 10/27 × 10 = 840/270
3. Likewise, for the 2nd fraction, since 90 × 3 = 270,
   12/90 = 12 × 3/90 × 3 = 36/270
4. Add the two like fractions:
   840/270 + 36/270 = 840 + 36/270 = 876/270
5. 876/270 simplified gives 146/45
6. So, 84/27 + 12/90 = 146/45
   In mixed form: 311/45

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