Subtract 1/4 from 3/28
3/28 - 1/4 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
3/28 = 3 × 1/28 × 1 = 3/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
1/4 = 1 × 7/4 × 7 = 7/28 - Subtract the two like fractions:
3/28 - 7/28 = 3 - 7/28 = -4/28 - After reducing the fraction, the answer is -1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-1/4 3/28-2/4 3/56-1/4 3/28-1/8 9/28-1/4 3/28-3/4 3/84-1/4 3/28-1/12 15/28-1/4 3/28-5/4 3/28-1/20 21/28-1/4 3/28-7/4 3/28-1/28