Answers

Add 25/75 and 42/21

1^st number: 25/75, 2^nd number: 2 0/21

25/75 + 42/21 is 7/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 21 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 75 × 7 = 525,
   25/75 = 25 × 7/75 × 7 = 175/525
3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
   42/21 = 42 × 25/21 × 25 = 1050/525
4. Add the two like fractions:
   175/525 + 1050/525 = 175 + 1050/525 = 1225/525
5. 1225/525 simplified gives 7/3
6. So, 25/75 + 42/21 = 7/3
   In mixed form: 21/3

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