Answers

Add 20/63 and 18/8

1^st number: 20/63, 2^nd number: 2 2/8

20/63 + 18/8 is 647/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 8 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   20/63 = 20 × 8/63 × 8 = 160/504
3. Likewise, for the 2nd fraction, since 8 × 63 = 504,
   18/8 = 18 × 63/8 × 63 = 1134/504
4. Add the two like fractions:
   160/504 + 1134/504 = 160 + 1134/504 = 1294/504
5. 1294/504 simplified gives 647/252
6. So, 20/63 + 18/8 = 647/252
   In mixed form: 2143/252

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