Answers

Add 27/63 and 20/24

27/63 + 20/24 is 53/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 24 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   27/63 = 27 × 8/63 × 8 = 216/504
3. Likewise, for the 2nd fraction, since 24 × 21 = 504,
   20/24 = 20 × 21/24 × 21 = 420/504
4. Add the two like fractions:
   216/504 + 420/504 = 216 + 420/504 = 636/504
5. 636/504 simplified gives 53/42
6. So, 27/63 + 20/24 = 53/42
   In mixed form: 111/42

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