Subtract 18/80 from 7/27
7/27 - 18/80 is 37/1080.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 27 × 80 = 2160,
7/27 = 7 × 80/27 × 80 = 560/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
18/80 = 18 × 27/80 × 27 = 486/2160 - Subtract the two like fractions:
560/2160 - 486/2160 = 560 - 486/2160 = 74/2160 - After reducing the fraction, the answer is 37/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-18/80 7/27-36/80 7/54-18/80 21/27-18/80 7/27-54/80 7/81-18/80 35/27-18/80 7/27-90/80 49/27-18/80