Subtract 7/40 from 5/9
5/9 - 7/40 is 137/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
5/9 = 5 × 40/9 × 40 = 200/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
7/40 = 7 × 9/40 × 9 = 63/360 - Subtract the two like fractions:
200/360 - 63/360 = 200 - 63/360 = 137/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-7/40 5/9-14/40 5/18-7/40 5/9-7/80 15/9-7/40 5/9-21/40 5/27-7/40 25/9-7/40 5/9-35/40 5/45-7/40 35/9-7/40 5/9-49/40 5/63-7/40