Subtract 8/27 from 18/80
18/80 - 8/27 is -77/1080.
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,
18/80 = 18 × 27/80 × 27 = 486/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
8/27 = 8 × 80/27 × 80 = 640/2160 - Subtract the two like fractions:
486/2160 - 640/2160 = 486 - 640/2160 = -154/2160 - After reducing the fraction, the answer is -77/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/80-8/27 18/80-16/27 18/80-8/54 54/80-8/27 18/80-24/27 18/80-8/81 90/80-8/27 18/80-40/27 18/80-56/27