Subtract 30/20 from 54/10
1st number: 5 4/10, 2nd number: 1 10/20
54/10 - 30/20 is 39/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
54/10 = 54 × 2/10 × 2 = 108/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Subtract the two like fractions:
108/20 - 30/20 = 108 - 30/20 = 78/20 - After reducing the fraction, the answer is 39/10
- In mixed form: 39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-60/20 54/20-30/20 54/10-30/40 54/10-90/20 54/30-30/20 54/10-30/60 54/50-30/20 54/70-30/20