Subtract 27/28 from 6/80
6/80 - 27/28 is -249/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
6/80 = 6 × 7/80 × 7 = 42/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
27/28 = 27 × 20/28 × 20 = 540/560 - Subtract the two like fractions:
42/560 - 540/560 = 42 - 540/560 = -498/560 - After reducing the fraction, the answer is -249/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80-27/28 6/80-54/28 6/80-27/56 18/80-27/28 6/80-81/28 6/80-27/84 30/80-27/28 42/80-27/28