Subtract 49/80 from 20/3
1st number: 6 2/3, 2nd number: 49/80
20/3 - 49/80 is 1453/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 3 × 80 = 240,
20/3 = 20 × 80/3 × 80 = 1600/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
49/80 = 49 × 3/80 × 3 = 147/240 - Subtract the two like fractions:
1600/240 - 147/240 = 1600 - 147/240 = 1453/240 - In mixed form: 613/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3-49/80 20/3-98/80 20/6-49/80 60/3-49/80 20/9-49/80 20/15-49/80 20/21-49/80