Answers

Add 21/84 and 5/50

21/84 + 5/50 is 7/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 50 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 84 × 25 = 2100,
   21/84 = 21 × 25/84 × 25 = 525/2100
3. Likewise, for the 2nd fraction, since 50 × 42 = 2100,
   5/50 = 5 × 42/50 × 42 = 210/2100
4. Add the two like fractions:
   525/2100 + 210/2100 = 525 + 210/2100 = 735/2100
5. 735/2100 simplified gives 7/20
6. So, 21/84 + 5/50 = 7/20

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