Subtract 9/40 from 1/14
1/14 - 9/40 is -43/280.
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,
1/14 = 1 × 20/14 × 20 = 20/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Subtract the two like fractions:
20/280 - 63/280 = 20 - 63/280 = -43/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/14-9/40 1/14-18/40 1/28-9/40 1/14-9/80 3/14-9/40 1/14-27/40 1/42-9/40 5/14-9/40 1/14-45/40 1/70-9/40 7/14-9/40 1/14-63/40 1/98-9/40