Subtract 21/16 from 2/80
1st number: 2/80, 2nd number: 1 5/16
2/80 - 21/16 is -103/80.
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,
2/80 = 2 × 1/80 × 1 = 2/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
21/16 = 21 × 5/16 × 5 = 105/80 - Subtract the two like fractions:
2/80 - 105/80 = 2 - 105/80 = -103/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/80-21/16 2/80-42/16 2/80-21/32 6/80-21/16 2/80-63/16 2/80-21/48 10/80-21/16 2/80-21/80 14/80-21/16