Answers

Add 28/84 and 20/98

28/84 + 20/98 is 79/147.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 98 is 588
   
   Next, find the equivalent fraction of both fractional numbers with denominator 588
2. For the 1st fraction, since 84 × 7 = 588,
   28/84 = 28 × 7/84 × 7 = 196/588
3. Likewise, for the 2nd fraction, since 98 × 6 = 588,
   20/98 = 20 × 6/98 × 6 = 120/588
4. Add the two like fractions:
   196/588 + 120/588 = 196 + 120/588 = 316/588
5. 316/588 simplified gives 79/147
6. So, 28/84 + 20/98 = 79/147

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