Subtract 20/27 from 10/12
10/12 - 20/27 is 5/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
10/12 = 10 × 9/12 × 9 = 90/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
20/27 = 20 × 4/27 × 4 = 80/108 - Subtract the two like fractions:
90/108 - 80/108 = 90 - 80/108 = 10/108 - After reducing the fraction, the answer is 5/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12-20/27 10/12-40/27 10/24-20/27 10/12-20/54 30/12-20/27 10/12-60/27 10/36-20/27 10/12-20/81 50/12-20/27 10/60-20/27 70/12-20/27 10/84-20/27