Answers

Add 63/18 and 64/30

1^st number: 3 9/18, 2^nd number: 2 4/30

63/18 + 64/30 is 169/30.

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,
   64/30 = 64 × 3/30 × 3 = 192/90
4. Add the two like fractions:
   315/90 + 192/90 = 315 + 192/90 = 507/90
5. 507/90 simplified gives 169/30
6. So, 63/18 + 64/30 = 169/30
   In mixed form: 519/30

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