Answers

Subtract 81/49 from 8/42

1^st number: 8/42, 2^nd number: 1 32/49

8/42 - 81/49 is -215/147.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 49 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 42 × 7 = 294,
   8/42 = 8 × 7/42 × 7 = 56/294
3. Likewise, for the 2nd fraction, since 49 × 6 = 294,
   81/49 = 81 × 6/49 × 6 = 486/294
4. Subtract the two like fractions:
   56/294 - 486/294 = 56 - 486/294 = -430/294
5. After reducing the fraction, the answer is -215/147

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