Subtract 21/30 from 80/3
1st number: 26 2/3, 2nd number: 21/30
80/3 - 21/30 is 779/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 3 × 10 = 30,
80/3 = 80 × 10/3 × 10 = 800/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Subtract the two like fractions:
800/30 - 21/30 = 800 - 21/30 = 779/30 - In mixed form: 2529/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/3-42/30 80/6-21/30 80/3-21/60 80/3-63/30 80/9-21/30 80/3-21/90 80/15-21/30 80/21-21/30