Subtract 35/80 from 12/9
1st number: 1 3/9, 2nd number: 35/80
12/9 - 35/80 is 43/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
12/9 = 12 × 80/9 × 80 = 960/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
35/80 = 35 × 9/80 × 9 = 315/720 - Subtract the two like fractions:
960/720 - 315/720 = 960 - 315/720 = 645/720 - After reducing the fraction, the answer is 43/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9-35/80 12/9-70/80 12/18-35/80 36/9-35/80 12/27-35/80 60/9-35/80 12/45-35/80 84/9-35/80 12/63-35/80