Subtract 54/10 from 27/28
1st number: 27/28, 2nd number: 5 4/10
27/28 - 54/10 is -621/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
27/28 = 27 × 5/28 × 5 = 135/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
54/10 = 54 × 14/10 × 14 = 756/140 - Subtract the two like fractions:
135/140 - 756/140 = 135 - 756/140 = -621/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28-54/10 27/56-54/10 27/28-54/20 81/28-54/10 27/84-54/10 27/28-54/30 27/28-54/50 27/28-54/70