Subtract 54/9 from 5/20
1st number: 5/20, 2nd number: 6 0/9
5/20 - 54/9 is -23/4.
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,
5/20 = 5 × 9/20 × 9 = 45/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
54/9 = 54 × 20/9 × 20 = 1080/180 - Subtract the two like fractions:
45/180 - 1080/180 = 45 - 1080/180 = -1035/180 - After reducing the fraction, the answer is -23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-54/9 5/40-54/9 5/20-54/18 15/20-54/9 5/60-54/9 5/20-54/27 25/20-54/9 5/20-54/45 35/20-54/9 5/20-54/63