Subtract 10/18 from 25/80
25/80 - 10/18 is -35/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
25/80 = 25 × 9/80 × 9 = 225/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
10/18 = 10 × 40/18 × 40 = 400/720 - Subtract the two like fractions:
225/720 - 400/720 = 225 - 400/720 = -175/720 - After reducing the fraction, the answer is -35/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80-10/18 25/80-20/18 25/80-10/36 75/80-10/18 25/80-30/18 25/80-10/54 25/80-50/18 25/80-10/90 25/80-70/18