Subtract 50/84 from 12/27
12/27 - 50/84 is -19/126.
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,
12/27 = 12 × 28/27 × 28 = 336/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
50/84 = 50 × 9/84 × 9 = 450/756 - Subtract the two like fractions:
336/756 - 450/756 = 336 - 450/756 = -114/756 - After reducing the fraction, the answer is -19/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/27-50/84 12/54-50/84 36/27-50/84 12/81-50/84 60/27-50/84 84/27-50/84