Subtract 1/80 from 3/28
3/28 - 1/80 is 53/560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
3/28 = 3 × 20/28 × 20 = 60/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
1/80 = 1 × 7/80 × 7 = 7/560 - Subtract the two like fractions:
60/560 - 7/560 = 60 - 7/560 = 53/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-1/80 3/28-2/80 3/56-1/80 9/28-1/80 3/28-3/80 3/84-1/80 15/28-1/80 3/28-5/80 21/28-1/80 3/28-7/80