Answers

Add 90/28 and 30/36

1^st number: 3 6/28, 2^nd number: 30/36

90/28 + 30/36 is 85/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 28 × 9 = 252,
   90/28 = 90 × 9/28 × 9 = 810/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   30/36 = 30 × 7/36 × 7 = 210/252
4. Add the two like fractions:
   810/252 + 210/252 = 810 + 210/252 = 1020/252
5. 1020/252 simplified gives 85/21
6. So, 90/28 + 30/36 = 85/21
   In mixed form: 41/21

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