Subtract 21/50 from 4/12
4/12 - 21/50 is -13/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
4/12 = 4 × 25/12 × 25 = 100/300 - Likewise, for the 2nd fraction, since 50 × 6 = 300,
21/50 = 21 × 6/50 × 6 = 126/300 - Subtract the two like fractions:
100/300 - 126/300 = 100 - 126/300 = -26/300 - After reducing the fraction, the answer is -13/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12-21/50 4/12-42/50 4/24-21/50 4/12-63/50 4/36-21/50 20/12-21/50 4/60-21/50 28/12-21/50 4/84-21/50