Answers

Add 28/84 and 2/30

28/84 + 2/30 is 2/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   28/84 = 28 × 5/84 × 5 = 140/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   2/30 = 2 × 14/30 × 14 = 28/420
4. Add the two like fractions:
   140/420 + 28/420 = 140 + 28/420 = 168/420
5. 168/420 simplified gives 2/5
6. So, 28/84 + 2/30 = 2/5

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