Subtract 35/9 from 15/80
1st number: 15/80, 2nd number: 3 8/9
15/80 - 35/9 is -533/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
15/80 = 15 × 9/80 × 9 = 135/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
35/9 = 35 × 80/9 × 80 = 2800/720 - Subtract the two like fractions:
135/720 - 2800/720 = 135 - 2800/720 = -2665/720 - After reducing the fraction, the answer is -533/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/80-35/9 15/80-70/9 15/80-35/18 45/80-35/9 15/80-35/27 75/80-35/9 15/80-35/45 15/80-35/63