Subtract 14/18 from 5/40
5/40 - 14/18 is -47/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
5/40 = 5 × 9/40 × 9 = 45/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
14/18 = 14 × 20/18 × 20 = 280/360 - Subtract the two like fractions:
45/360 - 280/360 = 45 - 280/360 = -235/360 - After reducing the fraction, the answer is -47/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40-14/18 5/40-28/18 5/80-14/18 5/40-14/36 15/40-14/18 5/40-42/18 5/40-14/54 25/40-14/18 5/40-70/18 5/40-14/90 35/40-14/18 5/40-98/18