Answers

Subtract 84/81 from 28/35

1^st number: 28/35, 2^nd number: 1 3/81

28/35 - 84/81 is -32/135.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 81 is 2835
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2835
2. For the 1st fraction, since 35 × 81 = 2835,
   28/35 = 28 × 81/35 × 81 = 2268/2835
3. Likewise, for the 2nd fraction, since 81 × 35 = 2835,
   84/81 = 84 × 35/81 × 35 = 2940/2835
4. Subtract the two like fractions:
   2268/2835 - 2940/2835 = 2268 - 2940/2835 = -672/2835
5. After reducing the fraction, the answer is -32/135

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