Answers

Add 84/24 and 27/90

1^st number: 3 12/24, 2^nd number: 27/90

84/24 + 27/90 is 19/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 24 × 15 = 360,
   84/24 = 84 × 15/24 × 15 = 1260/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   27/90 = 27 × 4/90 × 4 = 108/360
4. Add the two like fractions:
   1260/360 + 108/360 = 1260 + 108/360 = 1368/360
5. 1368/360 simplified gives 19/5
6. So, 84/24 + 27/90 = 19/5
   In mixed form: 34/5

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