Subtract 10/25 from 7/40
7/40 - 10/25 is -9/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
7/40 = 7 × 5/40 × 5 = 35/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
10/25 = 10 × 8/25 × 8 = 80/200 - Subtract the two like fractions:
35/200 - 80/200 = 35 - 80/200 = -45/200 - After reducing the fraction, the answer is -9/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40-10/25 7/40-20/25 7/80-10/25 7/40-10/50 21/40-10/25 7/40-30/25 7/40-10/75 35/40-10/25 7/40-50/25 49/40-10/25 7/40-70/25