Subtract 64/5 from 3/28
1st number: 3/28, 2nd number: 12 4/5
3/28 - 64/5 is -1777/140.
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,
3/28 = 3 × 5/28 × 5 = 15/140 - Likewise, for the 2nd fraction, since 5 × 28 = 140,
64/5 = 64 × 28/5 × 28 = 1792/140 - Subtract the two like fractions:
15/140 - 1792/140 = 15 - 1792/140 = -1777/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-64/5 3/56-64/5 3/28-64/10 9/28-64/5 3/84-64/5 3/28-64/15 15/28-64/5 3/28-64/25 21/28-64/5 3/28-64/35