Answers

Subtract 12/3 from 7/42

1^st number: 7/42, 2^nd number: 4 0/3

7/42 - 12/3 is -23/6.

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,
   7/42 = 7 × 1/42 × 1 = 7/42
3. Likewise, for the 2nd fraction, since 3 × 14 = 42,
   12/3 = 12 × 14/3 × 14 = 168/42
4. Subtract the two like fractions:
   7/42 - 168/42 = 7 - 168/42 = -161/42
5. After reducing the fraction, the answer is -23/6

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