Subtract 30/20 from 54/9
1st number: 6 0/9, 2nd number: 1 10/20
54/9 - 30/20 is 9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
54/9 = 54 × 20/9 × 20 = 1080/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
30/20 = 30 × 9/20 × 9 = 270/180 - Subtract the two like fractions:
1080/180 - 270/180 = 1080 - 270/180 = 810/180 - After reducing the fraction, the answer is 9/2
- In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9-60/20 54/18-30/20 54/9-30/40 54/9-90/20 54/27-30/20 54/9-30/60 54/45-30/20 54/63-30/20