Answers

Subtract 3/49 from 81/42

1^st number: 1 39/42, 2^nd number: 3/49

81/42 - 3/49 is 183/98.

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,
   81/42 = 81 × 7/42 × 7 = 567/294
3. Likewise, for the 2nd fraction, since 49 × 6 = 294,
   3/49 = 3 × 6/49 × 6 = 18/294
4. Subtract the two like fractions:
   567/294 - 18/294 = 567 - 18/294 = 549/294
5. After reducing the fraction, the answer is 183/98
6. In mixed form: 185/98

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