Subtract 32/90 from 6/80
6/80 - 32/90 is -101/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
6/80 = 6 × 9/80 × 9 = 54/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
32/90 = 32 × 8/90 × 8 = 256/720 - Subtract the two like fractions:
54/720 - 256/720 = 54 - 256/720 = -202/720 - After reducing the fraction, the answer is -101/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80-32/90 6/80-64/90 18/80-32/90 6/80-96/90 30/80-32/90 42/80-32/90