Subtract 10/5 from 20/27
1st number: 20/27, 2nd number: 2 0/5
20/27 - 10/5 is -34/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 5 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 27 × 5 = 135,
20/27 = 20 × 5/27 × 5 = 100/135 - Likewise, for the 2nd fraction, since 5 × 27 = 135,
10/5 = 10 × 27/5 × 27 = 270/135 - Subtract the two like fractions:
100/135 - 270/135 = 100 - 270/135 = -170/135 - After reducing the fraction, the answer is -34/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/27-10/5 20/27-20/5 20/54-10/5 60/27-10/5 20/27-30/5 20/81-10/5 20/27-10/15 20/27-50/5 20/27-10/25 20/27-70/5 20/27-10/35