Subtract 40/84 from 5/27
5/27 - 40/84 is -55/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
5/27 = 5 × 28/27 × 28 = 140/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
40/84 = 40 × 9/84 × 9 = 360/756 - Subtract the two like fractions:
140/756 - 360/756 = 140 - 360/756 = -220/756 - After reducing the fraction, the answer is -55/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/27-40/84 5/27-80/84 5/54-40/84 15/27-40/84 5/81-40/84 25/27-40/84 35/27-40/84