Answers

Add 30/15 and 90/28

1^st number: 2 0/15, 2^nd number: 3 6/28

30/15 + 90/28 is 73/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 28 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 15 × 28 = 420,
   30/15 = 30 × 28/15 × 28 = 840/420
3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
   90/28 = 90 × 15/28 × 15 = 1350/420
4. Add the two like fractions:
   840/420 + 1350/420 = 840 + 1350/420 = 2190/420
5. 2190/420 simplified gives 73/14
6. So, 30/15 + 90/28 = 73/14
   In mixed form: 53/14

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