Subtract 7/14 from 21/25
21/25 - 7/14 is 17/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 14 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
21/25 = 21 × 14/25 × 14 = 294/350 - Likewise, for the 2nd fraction, since 14 × 25 = 350,
7/14 = 7 × 25/14 × 25 = 175/350 - Subtract the two like fractions:
294/350 - 175/350 = 294 - 175/350 = 119/350 - After reducing the fraction, the answer is 17/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-7/14 21/50-7/14 21/25-7/28 63/25-7/14 21/25-21/14 21/75-7/14 21/25-7/42 21/25-35/14 21/25-7/70 21/25-49/14 21/25-7/98