Subtract 27/5 from 7/28
1st number: 7/28, 2nd number: 5 2/5
7/28 - 27/5 is -103/20.
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,
7/28 = 7 × 5/28 × 5 = 35/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
27/5 = 27 × 28/5 × 28 = 756/140 - Subtract the two like fractions:
35/140 - 756/140 = 35 - 756/140 = -721/140 - After reducing the fraction, the answer is -103/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28-27/5 7/28-54/5 7/56-27/5 7/28-27/10 21/28-27/5 7/28-81/5 7/84-27/5 7/28-27/15 35/28-27/5 7/28-27/25 49/28-27/5 7/28-27/35