Answers

Subtract 63/42 from 18/32

1^st number: 18/32, 2^nd number: 1 21/42

18/32 - 63/42 is -15/16.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 32 and 42 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 32 × 21 = 672,
   18/32 = 18 × 21/32 × 21 = 378/672
3. Likewise, for the 2nd fraction, since 42 × 16 = 672,
   63/42 = 63 × 16/42 × 16 = 1008/672
4. Subtract the two like fractions:
   378/672 - 1008/672 = 378 - 1008/672 = -630/672
5. After reducing the fraction, the answer is -15/16

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