Subtract 20/12 from 54/4
1st number: 13 2/4, 2nd number: 1 8/12
54/4 - 20/12 is 71/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
54/4 = 54 × 3/4 × 3 = 162/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
20/12 = 20 × 1/12 × 1 = 20/12 - Subtract the two like fractions:
162/12 - 20/12 = 162 - 20/12 = 142/12 - After reducing the fraction, the answer is 71/6
- In mixed form: 115/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4-40/12 54/8-20/12 54/4-20/24 54/4-60/12 54/12-20/12 54/4-20/36 54/20-20/12 54/4-20/60 54/28-20/12 54/4-20/84