Answers

Add 30/84 and 28/70

30/84 + 28/70 is 53/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   30/84 = 30 × 5/84 × 5 = 150/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   28/70 = 28 × 6/70 × 6 = 168/420
4. Add the two like fractions:
   150/420 + 168/420 = 150 + 168/420 = 318/420
5. 318/420 simplified gives 53/70
6. So, 30/84 + 28/70 = 53/70

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