Subtract 20/9 from 32/90
1st number: 32/90, 2nd number: 2 2/9
32/90 - 20/9 is -28/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
32/90 = 32 × 1/90 × 1 = 32/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
20/9 = 20 × 10/9 × 10 = 200/90 - Subtract the two like fractions:
32/90 - 200/90 = 32 - 200/90 = -168/90 - After reducing the fraction, the answer is -28/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/90-20/9 32/90-40/9 32/90-20/18 96/90-20/9 32/90-60/9 32/90-20/27 32/90-20/45 32/90-20/63