Subtract 40/27 from 3/20
1st number: 3/20, 2nd number: 1 13/27
3/20 - 40/27 is -719/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
3/20 = 3 × 27/20 × 27 = 81/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
40/27 = 40 × 20/27 × 20 = 800/540 - Subtract the two like fractions:
81/540 - 800/540 = 81 - 800/540 = -719/540
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-40/27 3/20-80/27 3/40-40/27 3/20-40/54 9/20-40/27 3/60-40/27 3/20-40/81 15/20-40/27 21/20-40/27