Subtract 21/49 from 1/4
1/4 - 21/49 is -5/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 4 × 49 = 196,
1/4 = 1 × 49/4 × 49 = 49/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
21/49 = 21 × 4/49 × 4 = 84/196 - Subtract the two like fractions:
49/196 - 84/196 = 49 - 84/196 = -35/196 - After reducing the fraction, the answer is -5/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-21/49 1/4-42/49 1/8-21/49 1/4-21/98 3/4-21/49 1/4-63/49 1/12-21/49 5/4-21/49 1/20-21/49 7/4-21/49 1/28-21/49