Answers

Subtract 70/27 from 40/81

1^st number: 40/81, 2^nd number: 2 16/27

40/81 - 70/27 is -170/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 27 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 81 × 1 = 81,
   40/81 = 40 × 1/81 × 1 = 40/81
3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
   70/27 = 70 × 3/27 × 3 = 210/81
4. Subtract the two like fractions:
   40/81 - 210/81 = 40 - 210/81 = -170/81

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