Answers

Subtract 49/8 from 1/81

1^st number: 1/81, 2^nd number: 6 1/8

1/81 - 49/8 is -3961/648.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 8 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 81 × 8 = 648,
   1/81 = 1 × 8/81 × 8 = 8/648
3. Likewise, for the 2nd fraction, since 8 × 81 = 648,
   49/8 = 49 × 81/8 × 81 = 3969/648
4. Subtract the two like fractions:
   8/648 - 3969/648 = 8 - 3969/648 = -3961/648

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