Answers

Add 16/84 and 28/40

16/84 + 28/40 is 187/210.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 84 × 10 = 840,
   16/84 = 16 × 10/84 × 10 = 160/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   28/40 = 28 × 21/40 × 21 = 588/840
4. Add the two like fractions:
   160/840 + 588/840 = 160 + 588/840 = 748/840
5. 748/840 simplified gives 187/210
6. So, 16/84 + 28/40 = 187/210

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