Answers

Subtract 63/42 from 7/4

1^st number: 1 3/4, 2^nd number: 1 21/42

7/4 - 63/42 is 1/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   7/4 = 7 × 21/4 × 21 = 147/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   63/42 = 63 × 2/42 × 2 = 126/84
4. Subtract the two like fractions:
   147/84 - 126/84 = 147 - 126/84 = 21/84
5. After reducing the fraction, the answer is 1/4

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