Answers

Add 25/84 and 35/20

1^st number: 25/84, 2^nd number: 1 15/20

25/84 + 35/20 is 43/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   25/84 = 25 × 5/84 × 5 = 125/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   35/20 = 35 × 21/20 × 21 = 735/420
4. Add the two like fractions:
   125/420 + 735/420 = 125 + 735/420 = 860/420
5. 860/420 simplified gives 43/21
6. So, 25/84 + 35/20 = 43/21
   In mixed form: 21/21

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