Subtract 15/5 from 5/28
1st number: 5/28, 2nd number: 3 0/5
5/28 - 15/5 is -79/28.
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,
5/28 = 5 × 5/28 × 5 = 25/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
15/5 = 15 × 28/5 × 28 = 420/140 - Subtract the two like fractions:
25/140 - 420/140 = 25 - 420/140 = -395/140 - After reducing the fraction, the answer is -79/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28-15/5 5/28-30/5 5/56-15/5 5/28-15/10 15/28-15/5 5/28-45/5 5/84-15/5 25/28-15/5 5/28-75/5 5/28-15/25 35/28-15/5 5/28-15/35