Subtract 7/80 from 9/25
9/25 - 7/80 is 109/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
9/25 = 9 × 16/25 × 16 = 144/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
7/80 = 7 × 5/80 × 5 = 35/400 - Subtract the two like fractions:
144/400 - 35/400 = 144 - 35/400 = 109/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/25-7/80 9/25-14/80 9/50-7/80 27/25-7/80 9/25-21/80 9/75-7/80 45/25-7/80 9/25-35/80 63/25-7/80 9/25-49/80