Subtract 35/81 from 28/84
28/84 - 35/81 is -8/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 84 × 27 = 2268,
28/84 = 28 × 27/84 × 27 = 756/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
35/81 = 35 × 28/81 × 28 = 980/2268 - Subtract the two like fractions:
756/2268 - 980/2268 = 756 - 980/2268 = -224/2268 - After reducing the fraction, the answer is -8/81
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