Subtract 54/20 from 9/28
1st number: 9/28, 2nd number: 2 14/20
9/28 - 54/20 is -333/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
9/28 = 9 × 5/28 × 5 = 45/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Subtract the two like fractions:
45/140 - 378/140 = 45 - 378/140 = -333/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/28-54/20 9/56-54/20 9/28-54/40 27/28-54/20 9/84-54/20 9/28-54/60 45/28-54/20 63/28-54/20