Answers

Subtract 42/21 from 63/25

1^st number: 2 13/25, 2^nd number: 2 0/21

63/25 - 42/21 is 13/25.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 21 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 25 × 21 = 525,
   63/25 = 63 × 21/25 × 21 = 1323/525
3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
   42/21 = 42 × 25/21 × 25 = 1050/525
4. Subtract the two like fractions:
   1323/525 - 1050/525 = 1323 - 1050/525 = 273/525
5. After reducing the fraction, the answer is 13/25

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