Subtract 3/40 from 9/14
9/14 - 3/40 is 159/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
9/14 = 9 × 20/14 × 20 = 180/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
3/40 = 3 × 7/40 × 7 = 21/280 - Subtract the two like fractions:
180/280 - 21/280 = 180 - 21/280 = 159/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/14-3/40 9/14-6/40 9/28-3/40 9/14-3/80 27/14-3/40 9/14-9/40 9/42-3/40 45/14-3/40 9/14-15/40 9/70-3/40 63/14-3/40 9/14-21/40 9/98-3/40