Answers

Subtract 30/27 from 28/81

1^st number: 28/81, 2^nd number: 1 3/27

28/81 - 30/27 is -62/81.

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,
   28/81 = 28 × 1/81 × 1 = 28/81
3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
   30/27 = 30 × 3/27 × 3 = 90/81
4. Subtract the two like fractions:
   28/81 - 90/81 = 28 - 90/81 = -62/81

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