Answers

Subtract 4/63 from 75/21

1^st number: 3 12/21, 2^nd number: 4/63

75/21 - 4/63 is 221/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 63 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 21 × 3 = 63,
   75/21 = 75 × 3/21 × 3 = 225/63
3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
   4/63 = 4 × 1/63 × 1 = 4/63
4. Subtract the two like fractions:
   225/63 - 4/63 = 225 - 4/63 = 221/63
5. In mixed form: 332/63

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