Subtract 10/54 from 30/90
30/90 - 10/54 is 4/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
30/90 = 30 × 3/90 × 3 = 90/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
10/54 = 10 × 5/54 × 5 = 50/270 - Subtract the two like fractions:
90/270 - 50/270 = 90 - 50/270 = 40/270 - After reducing the fraction, the answer is 4/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90-10/54 30/90-20/54 30/90-30/54 30/90-50/54 30/90-70/54