Subtract 8/9 from 54/20
1st number: 2 14/20, 2nd number: 8/9
54/20 - 8/9 is 163/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
54/20 = 54 × 9/20 × 9 = 486/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
8/9 = 8 × 20/9 × 20 = 160/180 - Subtract the two like fractions:
486/180 - 160/180 = 486 - 160/180 = 326/180 - After reducing the fraction, the answer is 163/90
- In mixed form: 173/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20-16/9 54/40-8/9 54/20-8/18 54/20-24/9 54/60-8/9 54/20-8/27 54/20-40/9 54/20-8/45 54/20-56/9 54/20-8/63