Answers

Subtract 72/12 from 7/42

1^st number: 7/42, 2^nd number: 6 0/12

7/42 - 72/12 is -35/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 12 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 42 × 2 = 84,
   7/42 = 7 × 2/42 × 2 = 14/84
3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
   72/12 = 72 × 7/12 × 7 = 504/84
4. Subtract the two like fractions:
   14/84 - 504/84 = 14 - 504/84 = -490/84
5. After reducing the fraction, the answer is -35/6

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