Answers

Add 20/63 and 8/60

20/63 + 8/60 is 142/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 60 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   20/63 = 20 × 20/63 × 20 = 400/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   8/60 = 8 × 21/60 × 21 = 168/1260
4. Add the two like fractions:
   400/1260 + 168/1260 = 400 + 168/1260 = 568/1260
5. 568/1260 simplified gives 142/315
6. So, 20/63 + 8/60 = 142/315

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