Answers

Subtract 27/16 from 25/42

1^st number: 25/42, 2^nd number: 1 11/16

25/42 - 27/16 is -367/336.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 16 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 42 × 8 = 336,
   25/42 = 25 × 8/42 × 8 = 200/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   27/16 = 27 × 21/16 × 21 = 567/336
4. Subtract the two like fractions:
   200/336 - 567/336 = 200 - 567/336 = -367/336

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