Subtract 40/84 from 40/54
40/54 - 40/84 is 50/189.
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,
40/54 = 40 × 14/54 × 14 = 560/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
40/84 = 40 × 9/84 × 9 = 360/756 - Subtract the two like fractions:
560/756 - 360/756 = 560 - 360/756 = 200/756 - After reducing the fraction, the answer is 50/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/54-40/84 40/54-80/84