Answers

Subtract 8/9 from 63/81

63/81 - 8/9 is -1/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 9 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 81 × 1 = 81,
   63/81 = 63 × 1/81 × 1 = 63/81
3. Likewise, for the 2nd fraction, since 9 × 9 = 81,
   8/9 = 8 × 9/9 × 9 = 72/81
4. Subtract the two like fractions:
   63/81 - 72/81 = 63 - 72/81 = -9/81
5. After reducing the fraction, the answer is -1/9

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