Answers

Add 90/84 and 81/6

1^st number: 1 6/84, 2^nd number: 13 3/6

90/84 + 81/6 is 102/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 6 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   90/84 = 90 × 1/84 × 1 = 90/84
3. Likewise, for the 2nd fraction, since 6 × 14 = 84,
   81/6 = 81 × 14/6 × 14 = 1134/84
4. Add the two like fractions:
   90/84 + 1134/84 = 90 + 1134/84 = 1224/84
5. 1224/84 simplified gives 102/7
6. So, 90/84 + 81/6 = 102/7
   In mixed form: 144/7

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