Answers

Subtract 70/81 from 18/9

1^st number: 2 0/9, 2^nd number: 70/81

18/9 - 70/81 is 92/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 9 × 9 = 81,
   18/9 = 18 × 9/9 × 9 = 162/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   70/81 = 70 × 1/81 × 1 = 70/81
4. Subtract the two like fractions:
   162/81 - 70/81 = 162 - 70/81 = 92/81
5. In mixed form: 111/81

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