Subtract 5/28 from 6/81
6/81 - 5/28 is -79/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
6/81 = 6 × 28/81 × 28 = 168/2268 - Likewise, for the 2nd fraction, since 28 × 81 = 2268,
5/28 = 5 × 81/28 × 81 = 405/2268 - Subtract the two like fractions:
168/2268 - 405/2268 = 168 - 405/2268 = -237/2268 - After reducing the fraction, the answer is -79/756
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