Subtract 8/90 from 32/80
32/80 - 8/90 is 14/45.
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,
32/80 = 32 × 9/80 × 9 = 288/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
8/90 = 8 × 8/90 × 8 = 64/720 - Subtract the two like fractions:
288/720 - 64/720 = 288 - 64/720 = 224/720 - After reducing the fraction, the answer is 14/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/80-8/90 32/80-16/90 96/80-8/90 32/80-24/90 32/80-40/90 32/80-56/90