Answers

Add 21/63 and 54/8

1^st number: 21/63, 2^nd number: 6 6/8

21/63 + 54/8 is 85/12.

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,
   21/63 = 21 × 8/63 × 8 = 168/504
3. Likewise, for the 2nd fraction, since 8 × 63 = 504,
   54/8 = 54 × 63/8 × 63 = 3402/504
4. Add the two like fractions:
   168/504 + 3402/504 = 168 + 3402/504 = 3570/504
5. 3570/504 simplified gives 85/12
6. So, 21/63 + 54/8 = 85/12
   In mixed form: 71/12

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