Subtract 12/40 from 1/25
1/25 - 12/40 is -13/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
1/25 = 1 × 8/25 × 8 = 8/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
12/40 = 12 × 5/40 × 5 = 60/200 - Subtract the two like fractions:
8/200 - 60/200 = 8 - 60/200 = -52/200 - After reducing the fraction, the answer is -13/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/25-12/40 1/25-24/40 1/50-12/40 1/25-12/80 3/25-12/40 1/25-36/40 1/75-12/40 5/25-12/40 1/25-60/40 7/25-12/40 1/25-84/40