Subtract 6/9 from 12/80
12/80 - 6/9 is -31/60.
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,
12/80 = 12 × 9/80 × 9 = 108/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
6/9 = 6 × 80/9 × 80 = 480/720 - Subtract the two like fractions:
108/720 - 480/720 = 108 - 480/720 = -372/720 - After reducing the fraction, the answer is -31/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80-6/9 12/80-12/9 12/80-6/18 36/80-6/9 12/80-18/9 12/80-6/27 60/80-6/9 12/80-30/9 12/80-6/45 84/80-6/9 12/80-42/9 12/80-6/63