Subtract 20/27 from 28/80
28/80 - 20/27 is -211/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
28/80 = 28 × 27/80 × 27 = 756/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
20/27 = 20 × 80/27 × 80 = 1600/2160 - Subtract the two like fractions:
756/2160 - 1600/2160 = 756 - 1600/2160 = -844/2160 - After reducing the fraction, the answer is -211/540
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