Subtract 28/16 from 3/80
1st number: 3/80, 2nd number: 1 12/16
3/80 - 28/16 is -137/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
28/16 = 28 × 5/16 × 5 = 140/80 - Subtract the two like fractions:
3/80 - 140/80 = 3 - 140/80 = -137/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80-28/16 3/80-56/16 3/80-28/32 9/80-28/16 3/80-84/16 3/80-28/48 15/80-28/16 3/80-28/80 21/80-28/16