Subtract 30/90 from 2/27
2/27 - 30/90 is -7/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
2/27 = 2 × 10/27 × 10 = 20/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
30/90 = 30 × 3/90 × 3 = 90/270 - Subtract the two like fractions:
20/270 - 90/270 = 20 - 90/270 = -70/270 - After reducing the fraction, the answer is -7/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/27-30/90 2/27-60/90 2/54-30/90 6/27-30/90 2/81-30/90 10/27-30/90 14/27-30/90