Subtract 4/14 from 7/40
7/40 - 4/14 is -31/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
7/40 = 7 × 7/40 × 7 = 49/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
4/14 = 4 × 20/14 × 20 = 80/280 - Subtract the two like fractions:
49/280 - 80/280 = 49 - 80/280 = -31/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40-4/14 7/40-8/14 7/80-4/14 7/40-4/28 21/40-4/14 7/40-12/14 7/40-4/42 35/40-4/14 7/40-20/14 7/40-4/70 49/40-4/14 7/40-28/14 7/40-4/98