Answers

Subtract 8/9 from 81/10

1^st number: 8 1/10, 2^nd number: 8/9

81/10 - 8/9 is 649/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 9 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   81/10 = 81 × 9/10 × 9 = 729/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   8/9 = 8 × 10/9 × 10 = 80/90
4. Subtract the two like fractions:
   729/90 - 80/90 = 729 - 80/90 = 649/90
5. In mixed form: 719/90

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