Subtract 98/10 from 10/28
1st number: 10/28, 2nd number: 9 8/10
10/28 - 98/10 is -661/70.
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,
10/28 = 10 × 5/28 × 5 = 50/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
98/10 = 98 × 14/10 × 14 = 1372/140 - Subtract the two like fractions:
50/140 - 1372/140 = 50 - 1372/140 = -1322/140 - After reducing the fraction, the answer is -661/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28-98/10 10/56-98/10 10/28-98/20 30/28-98/10 10/84-98/10 10/28-98/30 50/28-98/10 10/28-98/50 70/28-98/10 10/28-98/70