Subtract 9/28 from 3/10
3/10 - 9/28 is -3/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
3/10 = 3 × 14/10 × 14 = 42/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
9/28 = 9 × 5/28 × 5 = 45/140 - Subtract the two like fractions:
42/140 - 45/140 = 42 - 45/140 = -3/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-9/28 3/10-18/28 3/20-9/28 3/10-9/56 9/10-9/28 3/10-27/28 3/30-9/28 3/10-9/84 15/10-9/28 3/10-45/28 3/50-9/28 21/10-9/28 3/10-63/28 3/70-9/28