Subtract 15/40 from 6/9
6/9 - 15/40 is 7/24.
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,
6/9 = 6 × 40/9 × 40 = 240/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
15/40 = 15 × 9/40 × 9 = 135/360 - Subtract the two like fractions:
240/360 - 135/360 = 240 - 135/360 = 105/360 - After reducing the fraction, the answer is 7/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/9-15/40 6/9-30/40 6/18-15/40 6/9-15/80 18/9-15/40 6/9-45/40 6/27-15/40 30/9-15/40 6/9-75/40 6/45-15/40 42/9-15/40 6/63-15/40