Subtract 30/80 from 3/25
3/25 - 30/80 is -51/200.
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,
3/25 = 3 × 16/25 × 16 = 48/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
30/80 = 30 × 5/80 × 5 = 150/400 - Subtract the two like fractions:
48/400 - 150/400 = 48 - 150/400 = -102/400 - After reducing the fraction, the answer is -51/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/25-30/80 3/25-60/80 3/50-30/80 9/25-30/80 3/25-90/80 3/75-30/80 15/25-30/80 21/25-30/80