Subtract 20/15 from 54/10
1st number: 5 4/10, 2nd number: 1 5/15
54/10 - 20/15 is 61/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
54/10 = 54 × 3/10 × 3 = 162/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
20/15 = 20 × 2/15 × 2 = 40/30 - Subtract the two like fractions:
162/30 - 40/30 = 162 - 40/30 = 122/30 - After reducing the fraction, the answer is 61/15
- In mixed form: 41/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-40/15 54/20-20/15 54/10-20/30 54/10-60/15 54/30-20/15 54/10-20/45 54/50-20/15 54/10-20/75 54/70-20/15