Answers

Subtract 25/63 from 42/21

1^st number: 2 0/21, 2^nd number: 25/63

42/21 - 25/63 is 101/63.

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,
   42/21 = 42 × 3/21 × 3 = 126/63
3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
   25/63 = 25 × 1/63 × 1 = 25/63
4. Subtract the two like fractions:
   126/63 - 25/63 = 126 - 25/63 = 101/63
5. In mixed form: 138/63

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