Subtract 20/27 from 5/30
5/30 - 20/27 is -31/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
5/30 = 5 × 9/30 × 9 = 45/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
20/27 = 20 × 10/27 × 10 = 200/270 - Subtract the two like fractions:
45/270 - 200/270 = 45 - 200/270 = -155/270 - After reducing the fraction, the answer is -31/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-20/27 5/30-40/27 5/60-20/27 5/30-20/54 15/30-20/27 5/30-60/27 5/90-20/27 5/30-20/81 25/30-20/27 35/30-20/27