Answers

Subtract 42/3 from 20/42

1^st number: 20/42, 2^nd number: 14 0/3

20/42 - 42/3 is -284/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 3 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   20/42 = 20 × 1/42 × 1 = 20/42
3. Likewise, for the 2nd fraction, since 3 × 14 = 42,
   42/3 = 42 × 14/3 × 14 = 588/42
4. Subtract the two like fractions:
   20/42 - 588/42 = 20 - 588/42 = -568/42
5. After reducing the fraction, the answer is -284/21

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