Subtract 30/90 from 2/54
2/54 - 30/90 is -8/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
2/54 = 2 × 5/54 × 5 = 10/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
30/90 = 30 × 3/90 × 3 = 90/270 - Subtract the two like fractions:
10/270 - 90/270 = 10 - 90/270 = -80/270 - After reducing the fraction, the answer is -8/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/54-30/90 2/54-60/90 6/54-30/90 10/54-30/90 14/54-30/90