Subtract 27/40 from 54/12
1st number: 4 6/12, 2nd number: 27/40
54/12 - 27/40 is 153/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
54/12 = 54 × 10/12 × 10 = 540/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
27/40 = 27 × 3/40 × 3 = 81/120 - Subtract the two like fractions:
540/120 - 81/120 = 540 - 81/120 = 459/120 - After reducing the fraction, the answer is 153/40
- In mixed form: 333/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-54/40 54/24-27/40 54/12-27/80 54/12-81/40 54/36-27/40 54/60-27/40 54/84-27/40