Answers

Add 84/24 and 63/90

1^st number: 3 12/24, 2^nd number: 63/90

84/24 + 63/90 is 21/5.

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,
   63/90 = 63 × 4/90 × 4 = 252/360
4. Add the two like fractions:
   1260/360 + 252/360 = 1260 + 252/360 = 1512/360
5. 1512/360 simplified gives 21/5
6. So, 84/24 + 63/90 = 21/5
   In mixed form: 41/5

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