Subtract 28/5 from 54/40
1st number: 1 14/40, 2nd number: 5 3/5
54/40 - 28/5 is -17/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
54/40 = 54 × 1/40 × 1 = 54/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
28/5 = 28 × 8/5 × 8 = 224/40 - Subtract the two like fractions:
54/40 - 224/40 = 54 - 224/40 = -170/40 - After reducing the fraction, the answer is -17/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-56/5 54/80-28/5 54/40-28/10 54/40-84/5 54/40-28/15 54/40-28/25 54/40-28/35