Subtract 15/80 from 7/25
7/25 - 15/80 is 37/400.
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,
7/25 = 7 × 16/25 × 16 = 112/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
15/80 = 15 × 5/80 × 5 = 75/400 - Subtract the two like fractions:
112/400 - 75/400 = 112 - 75/400 = 37/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/25-15/80 7/25-30/80 7/50-15/80 21/25-15/80 7/25-45/80 7/75-15/80 35/25-15/80 7/25-75/80 49/25-15/80