Subtract 25/20 from 40/27
1st number: 1 13/27, 2nd number: 1 5/20
40/27 - 25/20 is 25/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
40/27 = 40 × 20/27 × 20 = 800/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
25/20 = 25 × 27/20 × 27 = 675/540 - Subtract the two like fractions:
800/540 - 675/540 = 800 - 675/540 = 125/540 - After reducing the fraction, the answer is 25/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/27-25/20 40/27-50/20 40/54-25/20 40/27-25/40 40/27-75/20 40/81-25/20 40/27-25/60