Subtract 14/20 from 6/28
6/28 - 14/20 is -17/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
6/28 = 6 × 5/28 × 5 = 30/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
14/20 = 14 × 7/20 × 7 = 98/140 - Subtract the two like fractions:
30/140 - 98/140 = 30 - 98/140 = -68/140 - After reducing the fraction, the answer is -17/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28-14/20 6/28-28/20 6/56-14/20 6/28-14/40 18/28-14/20 6/28-42/20 6/84-14/20 6/28-14/60 30/28-14/20 6/28-70/20 42/28-14/20 6/28-98/20