Subtract 98/40 from 6/28
1st number: 6/28, 2nd number: 2 18/40
6/28 - 98/40 is -313/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
6/28 = 6 × 10/28 × 10 = 60/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
98/40 = 98 × 7/40 × 7 = 686/280 - Subtract the two like fractions:
60/280 - 686/280 = 60 - 686/280 = -626/280 - After reducing the fraction, the answer is -313/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28-98/40 6/56-98/40 6/28-98/80 18/28-98/40 6/84-98/40 30/28-98/40 42/28-98/40