Answers

Subtract 40/18 from 2/81

1^st number: 2/81, 2^nd number: 2 4/18

2/81 - 40/18 is -178/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 18 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 81 × 2 = 162,
   2/81 = 2 × 2/81 × 2 = 4/162
3. Likewise, for the 2nd fraction, since 18 × 9 = 162,
   40/18 = 40 × 9/18 × 9 = 360/162
4. Subtract the two like fractions:
   4/162 - 360/162 = 4 - 360/162 = -356/162
5. After reducing the fraction, the answer is -178/81

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