Answers

Subtract 21/14 from 63/42

1^st number: 1 21/42, 2^nd number: 1 7/14

63/42 - 21/14 is 0/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 14 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   63/42 = 63 × 1/42 × 1 = 63/42
3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
   21/14 = 21 × 3/14 × 3 = 63/42
4. Subtract the two like fractions:
   63/42 - 63/42 = 63 - 63/42 = 0/42
5. The answer is 0

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