Answers

Add 7/84 and 90/36

1^st number: 7/84, 2^nd number: 2 18/36

7/84 + 90/36 is 31/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 36 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 36 × 7 = 252,
   90/36 = 90 × 7/36 × 7 = 630/252
4. Add the two like fractions:
   21/252 + 630/252 = 21 + 630/252 = 651/252
5. 651/252 simplified gives 31/12
6. So, 7/84 + 90/36 = 31/12
   In mixed form: 27/12

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