Answers

Add 7/84 and 90/9

1^st number: 7/84, 2^nd number: 10 0/9

7/84 + 90/9 is 121/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 9 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   7/84 = 7 × 3/84 × 3 = 21/252
3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
   90/9 = 90 × 28/9 × 28 = 2520/252
4. Add the two like fractions:
   21/252 + 2520/252 = 21 + 2520/252 = 2541/252
5. 2541/252 simplified gives 121/12
6. So, 7/84 + 90/9 = 121/12
   In mixed form: 101/12

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