Answers

Add 21/84 and 25/49

21/84 + 25/49 is 149/196.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 49 is 588
   
   Next, find the equivalent fraction of both fractional numbers with denominator 588
2. For the 1st fraction, since 84 × 7 = 588,
   21/84 = 21 × 7/84 × 7 = 147/588
3. Likewise, for the 2nd fraction, since 49 × 12 = 588,
   25/49 = 25 × 12/49 × 12 = 300/588
4. Add the two like fractions:
   147/588 + 300/588 = 147 + 300/588 = 447/588
5. 447/588 simplified gives 149/196
6. So, 21/84 + 25/49 = 149/196

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