Answers

Add 7/84 and 9/8

1^st number: 7/84, 2^nd number: 1 1/8

7/84 + 9/8 is 29/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 84 × 2 = 168,
   7/84 = 7 × 2/84 × 2 = 14/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   9/8 = 9 × 21/8 × 21 = 189/168
4. Add the two like fractions:
   14/168 + 189/168 = 14 + 189/168 = 203/168
5. 203/168 simplified gives 29/24
6. So, 7/84 + 9/8 = 29/24
   In mixed form: 15/24

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