Answers

Add 8/63 and 10/20

8/63 + 10/20 is 79/126.

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,
   8/63 = 8 × 20/63 × 20 = 160/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   10/20 = 10 × 63/20 × 63 = 630/1260
4. Add the two like fractions:
   160/1260 + 630/1260 = 160 + 630/1260 = 790/1260
5. 790/1260 simplified gives 79/126
6. So, 8/63 + 10/20 = 79/126

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