Answers

Add 20/63 and 16/72

20/63 + 16/72 is 34/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 72 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 72 × 7 = 504,
   16/72 = 16 × 7/72 × 7 = 112/504
4. Add the two like fractions:
   160/504 + 112/504 = 160 + 112/504 = 272/504
5. 272/504 simplified gives 34/63
6. So, 20/63 + 16/72 = 34/63

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