Subtract 90/32 from 8/20
1st number: 8/20, 2nd number: 2 26/32
8/20 - 90/32 is -193/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
8/20 = 8 × 8/20 × 8 = 64/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
90/32 = 90 × 5/32 × 5 = 450/160 - Subtract the two like fractions:
64/160 - 450/160 = 64 - 450/160 = -386/160 - After reducing the fraction, the answer is -193/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/20-90/32 8/40-90/32 8/20-90/64 24/20-90/32 8/60-90/32 8/20-90/96 40/20-90/32 56/20-90/32