Subtract 15/40 from 54/10
1st number: 5 4/10, 2nd number: 15/40
54/10 - 15/40 is 201/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
54/10 = 54 × 4/10 × 4 = 216/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
15/40 = 15 × 1/40 × 1 = 15/40 - Subtract the two like fractions:
216/40 - 15/40 = 216 - 15/40 = 201/40 - In mixed form: 51/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/10-30/40 54/20-15/40 54/10-15/80 54/10-45/40 54/30-15/40 54/10-75/40 54/50-15/40 54/70-15/40