Answers

Add 84/21 and 21/25

1^st number: 4 0/21, 2^nd number: 21/25

84/21 + 21/25 is 121/25.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 25 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 21 × 25 = 525,
   84/21 = 84 × 25/21 × 25 = 2100/525
3. Likewise, for the 2nd fraction, since 25 × 21 = 525,
   21/25 = 21 × 21/25 × 21 = 441/525
4. Add the two like fractions:
   2100/525 + 441/525 = 2100 + 441/525 = 2541/525
5. 2541/525 simplified gives 121/25
6. So, 84/21 + 21/25 = 121/25
   In mixed form: 421/25

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