Subtract 3/80 from 4/18
4/18 - 3/80 is 133/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
4/18 = 4 × 40/18 × 40 = 160/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Subtract the two like fractions:
160/720 - 27/720 = 160 - 27/720 = 133/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/18-3/80 4/18-6/80 4/36-3/80 12/18-3/80 4/18-9/80 4/54-3/80 20/18-3/80 4/18-15/80 4/90-3/80 28/18-3/80 4/18-21/80