Answers

Subtract 27/36 from 4/42

4/42 - 27/36 is -55/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 36 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 42 × 6 = 252,
   4/42 = 4 × 6/42 × 6 = 24/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   27/36 = 27 × 7/36 × 7 = 189/252
4. Subtract the two like fractions:
   24/252 - 189/252 = 24 - 189/252 = -165/252
5. After reducing the fraction, the answer is -55/84

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