Answers

Add 30/90 and 90/28

1^st number: 30/90, 2^nd number: 3 6/28

30/90 + 90/28 is 149/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 28 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 90 × 14 = 1260,
   30/90 = 30 × 14/90 × 14 = 420/1260
3. Likewise, for the 2nd fraction, since 28 × 45 = 1260,
   90/28 = 90 × 45/28 × 45 = 4050/1260
4. Add the two like fractions:
   420/1260 + 4050/1260 = 420 + 4050/1260 = 4470/1260
5. 4470/1260 simplified gives 149/42
6. So, 30/90 + 90/28 = 149/42
   In mixed form: 323/42

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