Subtract 90/32 from 1/20
1st number: 1/20, 2nd number: 2 26/32
1/20 - 90/32 is -221/80.
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,
1/20 = 1 × 8/20 × 8 = 8/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
90/32 = 90 × 5/32 × 5 = 450/160 - Subtract the two like fractions:
8/160 - 450/160 = 8 - 450/160 = -442/160 - After reducing the fraction, the answer is -221/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-90/32 1/40-90/32 1/20-90/64 3/20-90/32 1/60-90/32 1/20-90/96 5/20-90/32 7/20-90/32