Answers

Add 3/63 and 6/20

3/63 + 6/20 is 73/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 20 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   3/63 = 3 × 20/63 × 20 = 60/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   6/20 = 6 × 63/20 × 63 = 378/1260
4. Add the two like fractions:
   60/1260 + 378/1260 = 60 + 378/1260 = 438/1260
5. 438/1260 simplified gives 73/210
6. So, 3/63 + 6/20 = 73/210

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