Subtract 49/80 from 7/9
7/9 - 49/80 is 119/720.
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,
7/9 = 7 × 80/9 × 80 = 560/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
49/80 = 49 × 9/80 × 9 = 441/720 - Subtract the two like fractions:
560/720 - 441/720 = 560 - 441/720 = 119/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9-49/80 7/9-98/80 7/18-49/80 21/9-49/80 7/27-49/80 35/9-49/80 7/45-49/80 49/9-49/80 7/63-49/80