Subtract 25/80 from 9/18
9/18 - 25/80 is 3/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
9/18 = 9 × 40/18 × 40 = 360/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
25/80 = 25 × 9/80 × 9 = 225/720 - Subtract the two like fractions:
360/720 - 225/720 = 360 - 225/720 = 135/720 - After reducing the fraction, the answer is 3/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/18-50/80 9/36-25/80 27/18-25/80 9/18-75/80 9/54-25/80 45/18-25/80 9/90-25/80 63/18-25/80