Subtract 28/40 from 1/16
1/16 - 28/40 is -51/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
1/16 = 1 × 5/16 × 5 = 5/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
28/40 = 28 × 2/40 × 2 = 56/80 - Subtract the two like fractions:
5/80 - 56/80 = 5 - 56/80 = -51/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/16-28/40 1/16-56/40 1/32-28/40 1/16-28/80 3/16-28/40 1/16-84/40 1/48-28/40 5/16-28/40 1/80-28/40 7/16-28/40