Answers

Add 84/63 and 45/8

1^st number: 1 21/63, 2^nd number: 5 5/8

84/63 + 45/8 is 167/24.

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,
   84/63 = 84 × 8/63 × 8 = 672/504
3. Likewise, for the 2nd fraction, since 8 × 63 = 504,
   45/8 = 45 × 63/8 × 63 = 2835/504
4. Add the two like fractions:
   672/504 + 2835/504 = 672 + 2835/504 = 3507/504
5. 3507/504 simplified gives 167/24
6. So, 84/63 + 45/8 = 167/24
   In mixed form: 623/24

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