Subtract 30/84 from 10/54
10/54 - 30/84 is -65/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
10/54 = 10 × 14/54 × 14 = 140/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
30/84 = 30 × 9/84 × 9 = 270/756 - Subtract the two like fractions:
140/756 - 270/756 = 140 - 270/756 = -130/756 - After reducing the fraction, the answer is -65/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/54-30/84 10/54-60/84 30/54-30/84 10/54-90/84 50/54-30/84 70/54-30/84