Answers

Add 18/63 and 7/30

18/63 + 7/30 is 109/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 30 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   18/63 = 18 × 10/63 × 10 = 180/630
3. Likewise, for the 2nd fraction, since 30 × 21 = 630,
   7/30 = 7 × 21/30 × 21 = 147/630
4. Add the two like fractions:
   180/630 + 147/630 = 180 + 147/630 = 327/630
5. 327/630 simplified gives 109/210
6. So, 18/63 + 7/30 = 109/210

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