Answers

Add 63/18 and 81/30

1^st number: 3 9/18, 2^nd number: 2 21/30

63/18 + 81/30 is 31/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 30 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   63/18 = 63 × 5/18 × 5 = 315/90
3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
   81/30 = 81 × 3/30 × 3 = 243/90
4. Add the two like fractions:
   315/90 + 243/90 = 315 + 243/90 = 558/90
5. 558/90 simplified gives 31/5
6. So, 63/18 + 81/30 = 31/5
   In mixed form: 61/5

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