Subtract 98/5 from 20/28
1st number: 20/28, 2nd number: 19 3/5
20/28 - 98/5 is -661/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 5 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
20/28 = 20 × 5/28 × 5 = 100/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
98/5 = 98 × 28/5 × 28 = 2744/140 - Subtract the two like fractions:
100/140 - 2744/140 = 100 - 2744/140 = -2644/140 - After reducing the fraction, the answer is -661/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/28-98/5 20/56-98/5 20/28-98/10 60/28-98/5 20/84-98/5 20/28-98/15 20/28-98/25 20/28-98/35