Subtract 28/5 from 18/32
1st number: 18/32, 2nd number: 5 3/5
18/32 - 28/5 is -403/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 5 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
18/32 = 18 × 5/32 × 5 = 90/160 - Likewise, for the 2nd fraction, since 5 × 32 = 160,
28/5 = 28 × 32/5 × 32 = 896/160 - Subtract the two like fractions:
90/160 - 896/160 = 90 - 896/160 = -806/160 - After reducing the fraction, the answer is -403/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/32-28/5 18/32-56/5 18/64-28/5 18/32-28/10 54/32-28/5 18/32-84/5 18/96-28/5 18/32-28/15 90/32-28/5 18/32-28/25 18/32-28/35