Answers

Add 30/63 and 72/8

1^st number: 30/63, 2^nd number: 9 0/8

30/63 + 72/8 is 199/21.

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,
   30/63 = 30 × 8/63 × 8 = 240/504
3. Likewise, for the 2nd fraction, since 8 × 63 = 504,
   72/8 = 72 × 63/8 × 63 = 4536/504
4. Add the two like fractions:
   240/504 + 4536/504 = 240 + 4536/504 = 4776/504
5. 4776/504 simplified gives 199/21
6. So, 30/63 + 72/8 = 199/21
   In mixed form: 910/21

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