Subtract 2/54 from 30/84
30/84 - 2/54 is 121/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
30/84 = 30 × 9/84 × 9 = 270/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
2/54 = 2 × 14/54 × 14 = 28/756 - Subtract the two like fractions:
270/756 - 28/756 = 270 - 28/756 = 242/756 - After reducing the fraction, the answer is 121/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84-2/54 30/84-4/54 90/84-2/54 30/84-6/54 30/84-10/54 30/84-14/54