Subtract 80/84 from 50/81
50/81 - 80/84 is -190/567.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 84 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
50/81 = 50 × 28/81 × 28 = 1400/2268 - Likewise, for the 2nd fraction, since 84 × 27 = 2268,
80/84 = 80 × 27/84 × 27 = 2160/2268 - Subtract the two like fractions:
1400/2268 - 2160/2268 = 1400 - 2160/2268 = -760/2268 - After reducing the fraction, the answer is -190/567
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