Answers

Add 21/63 and 5/72

21/63 + 5/72 is 29/72.

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,
   21/63 = 21 × 8/63 × 8 = 168/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   5/72 = 5 × 7/72 × 7 = 35/504
4. Add the two like fractions:
   168/504 + 35/504 = 168 + 35/504 = 203/504
5. 203/504 simplified gives 29/72
6. So, 21/63 + 5/72 = 29/72

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