Subtract 54/3 from 30/20
1st number: 1 10/20, 2nd number: 18 0/3
30/20 - 54/3 is -33/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
30/20 = 30 × 3/20 × 3 = 90/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
54/3 = 54 × 20/3 × 20 = 1080/60 - Subtract the two like fractions:
90/60 - 1080/60 = 90 - 1080/60 = -990/60 - After reducing the fraction, the answer is -33/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-54/3 30/40-54/3 30/20-54/6 90/20-54/3 30/60-54/3 30/20-54/9 30/20-54/15 30/20-54/21