Subtract 10/14 from 9/40
9/40 - 10/14 is -137/280.
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,
9/40 = 9 × 7/40 × 7 = 63/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
10/14 = 10 × 20/14 × 20 = 200/280 - Subtract the two like fractions:
63/280 - 200/280 = 63 - 200/280 = -137/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40-10/14 9/40-20/14 9/80-10/14 9/40-10/28 27/40-10/14 9/40-30/14 9/40-10/42 45/40-10/14 9/40-50/14 9/40-10/70 63/40-10/14 9/40-70/14 9/40-10/98