Answers

Subtract 21/6 from 6/42

1^st number: 6/42, 2^nd number: 3 3/6

6/42 - 21/6 is -47/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 6 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   6/42 = 6 × 1/42 × 1 = 6/42
3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
   21/6 = 21 × 7/6 × 7 = 147/42
4. Subtract the two like fractions:
   6/42 - 147/42 = 6 - 147/42 = -141/42
5. After reducing the fraction, the answer is -47/14

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