Answers

Add 18/84 and 90/7

1^st number: 18/84, 2^nd number: 12 6/7

18/84 + 90/7 is 183/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 7 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   18/84 = 18 × 1/84 × 1 = 18/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   90/7 = 90 × 12/7 × 12 = 1080/84
4. Add the two like fractions:
   18/84 + 1080/84 = 18 + 1080/84 = 1098/84
5. 1098/84 simplified gives 183/14
6. So, 18/84 + 90/7 = 183/14
   In mixed form: 131/14

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