Subtract 6/54 from 20/84
20/84 - 6/54 is 8/63.
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,
20/84 = 20 × 9/84 × 9 = 180/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
6/54 = 6 × 14/54 × 14 = 84/756 - Subtract the two like fractions:
180/756 - 84/756 = 180 - 84/756 = 96/756 - After reducing the fraction, the answer is 8/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84-6/54 20/84-12/54 60/84-6/54 20/84-18/54 20/84-30/54 20/84-42/54