Answers

Add 9/84 and 2/5

9/84 + 2/5 is 71/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 5 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   9/84 = 9 × 5/84 × 5 = 45/420
3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
   2/5 = 2 × 84/5 × 84 = 168/420
4. Add the two like fractions:
   45/420 + 168/420 = 45 + 168/420 = 213/420
5. 213/420 simplified gives 71/140
6. So, 9/84 + 2/5 = 71/140

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