Answers

Subtract 63/42 from 8/12

1^st number: 8/12, 2^nd number: 1 21/42

8/12 - 63/42 is -5/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   8/12 = 8 × 7/12 × 7 = 56/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   63/42 = 63 × 2/42 × 2 = 126/84
4. Subtract the two like fractions:
   56/84 - 126/84 = 56 - 126/84 = -70/84
5. After reducing the fraction, the answer is -5/6

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