Answers

Subtract 6/36 from 3/42

3/42 - 6/36 is -2/21.

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,
   3/42 = 3 × 6/42 × 6 = 18/252
3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
   6/36 = 6 × 7/36 × 7 = 42/252
4. Subtract the two like fractions:
   18/252 - 42/252 = 18 - 42/252 = -24/252
5. After reducing the fraction, the answer is -2/21

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