Subtract 40/10 from 25/7
1st number: 3 4/7, 2nd number: 4 0/10
25/7 - 40/10 is -3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
25/7 = 25 × 10/7 × 10 = 250/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
40/10 = 40 × 7/10 × 7 = 280/70 - Subtract the two like fractions:
250/70 - 280/70 = 250 - 280/70 = -30/70 - After reducing the fraction, the answer is -3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-40/10 25/7-80/10 25/14-40/10 25/7-40/20 75/7-40/10 25/21-40/10 25/7-40/30 25/35-40/10 25/7-40/50 25/49-40/10 25/7-40/70