Subtract 12/28 from 1/5
1/5 - 12/28 is -8/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
1/5 = 1 × 28/5 × 28 = 28/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
12/28 = 12 × 5/28 × 5 = 60/140 - Subtract the two like fractions:
28/140 - 60/140 = 28 - 60/140 = -32/140 - After reducing the fraction, the answer is -8/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5-12/28 1/5-24/28 1/10-12/28 1/5-12/56 3/5-12/28 1/5-36/28 1/15-12/28 1/5-12/84 1/5-60/28 1/25-12/28 7/5-12/28 1/5-84/28 1/35-12/28