Subtract 9/14 from 21/50
21/50 - 9/14 is -39/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 14 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
21/50 = 21 × 7/50 × 7 = 147/350 - Likewise, for the 2nd fraction, since 14 × 25 = 350,
9/14 = 9 × 25/14 × 25 = 225/350 - Subtract the two like fractions:
147/350 - 225/350 = 147 - 225/350 = -78/350 - After reducing the fraction, the answer is -39/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-9/14 21/50-18/14 21/50-9/28 63/50-9/14 21/50-27/14 21/50-9/42 21/50-45/14 21/50-9/70 21/50-63/14 21/50-9/98