Answers

Add 9/84 and 90/8

1^st number: 9/84, 2^nd number: 11 2/8

9/84 + 90/8 is 159/14.

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,
   9/84 = 9 × 2/84 × 2 = 18/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   90/8 = 90 × 21/8 × 21 = 1890/168
4. Add the two like fractions:
   18/168 + 1890/168 = 18 + 1890/168 = 1908/168
5. 1908/168 simplified gives 159/14
6. So, 9/84 + 90/8 = 159/14
   In mixed form: 115/14

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