Answers

Add 35/84 and 3/80

35/84 + 3/80 is 109/240.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 84 × 20 = 1680,
   35/84 = 35 × 20/84 × 20 = 700/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   3/80 = 3 × 21/80 × 21 = 63/1680
4. Add the two like fractions:
   700/1680 + 63/1680 = 700 + 63/1680 = 763/1680
5. 763/1680 simplified gives 109/240
6. So, 35/84 + 3/80 = 109/240

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