Subtract 20/10 from 4/28
1st number: 4/28, 2nd number: 2 0/10
4/28 - 20/10 is -13/7.
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,
4/28 = 4 × 5/28 × 5 = 20/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
20/10 = 20 × 14/10 × 14 = 280/140 - Subtract the two like fractions:
20/140 - 280/140 = 20 - 280/140 = -260/140 - After reducing the fraction, the answer is -13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28-20/10 4/28-40/10 4/56-20/10 12/28-20/10 4/28-60/10 4/84-20/10 4/28-20/30 20/28-20/10 4/28-20/50 4/28-20/70