Subtract 8/54 from 28/30
28/30 - 8/54 is 106/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
28/30 = 28 × 9/30 × 9 = 252/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
8/54 = 8 × 5/54 × 5 = 40/270 - Subtract the two like fractions:
252/270 - 40/270 = 252 - 40/270 = 212/270 - After reducing the fraction, the answer is 106/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30-8/54 28/30-16/54 28/60-8/54 84/30-8/54 28/30-24/54 28/90-8/54 28/30-40/54 28/30-56/54