Subtract 6/27 from 30/84
30/84 - 6/27 is 17/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 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 27 × 28 = 756,
6/27 = 6 × 28/27 × 28 = 168/756 - Subtract the two like fractions:
270/756 - 168/756 = 270 - 168/756 = 102/756 - After reducing the fraction, the answer is 17/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84-6/27 30/84-12/27 30/84-6/54 90/84-6/27 30/84-18/27 30/84-6/81 30/84-30/27 30/84-42/27