Subtract 8/10 from 2/28
2/28 - 8/10 is -51/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
2/28 = 2 × 5/28 × 5 = 10/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
8/10 = 8 × 14/10 × 14 = 112/140 - Subtract the two like fractions:
10/140 - 112/140 = 10 - 112/140 = -102/140 - After reducing the fraction, the answer is -51/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/28-8/10 2/28-16/10 2/56-8/10 2/28-8/20 6/28-8/10 2/28-24/10 2/84-8/10 2/28-8/30 10/28-8/10 2/28-40/10 2/28-8/50 14/28-8/10 2/28-56/10 2/28-8/70