Subtract 25/9 from 8/40
1st number: 8/40, 2nd number: 2 7/9
8/40 - 25/9 is -116/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
8/40 = 8 × 9/40 × 9 = 72/360 - Likewise, for the 2nd fraction, since 9 × 40 = 360,
25/9 = 25 × 40/9 × 40 = 1000/360 - Subtract the two like fractions:
72/360 - 1000/360 = 72 - 1000/360 = -928/360 - After reducing the fraction, the answer is -116/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40-25/9 8/40-50/9 8/80-25/9 8/40-25/18 24/40-25/9 8/40-75/9 8/40-25/27 8/40-25/45 56/40-25/9 8/40-25/63