Answers

Add 6/84 and 20/35

6/84 + 20/35 is 9/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 35 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   6/84 = 6 × 5/84 × 5 = 30/420
3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
   20/35 = 20 × 12/35 × 12 = 240/420
4. Add the two like fractions:
   30/420 + 240/420 = 30 + 240/420 = 270/420
5. 270/420 simplified gives 9/14
6. So, 6/84 + 20/35 = 9/14

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