Subtract 20/50 from 10/27
10/27 - 20/50 is -4/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 50 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 27 × 50 = 1350,
10/27 = 10 × 50/27 × 50 = 500/1350 - Likewise, for the 2nd fraction, since 50 × 27 = 1350,
20/50 = 20 × 27/50 × 27 = 540/1350 - Subtract the two like fractions:
500/1350 - 540/1350 = 500 - 540/1350 = -40/1350 - After reducing the fraction, the answer is -4/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/27-20/50 10/27-40/50 10/54-20/50 30/27-20/50 10/27-60/50 10/81-20/50 50/27-20/50 70/27-20/50