Subtract 54/16 from 20/12
1st number: 1 8/12, 2nd number: 3 6/16
20/12 - 54/16 is -41/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
54/16 = 54 × 3/16 × 3 = 162/48 - Subtract the two like fractions:
80/48 - 162/48 = 80 - 162/48 = -82/48 - After reducing the fraction, the answer is -41/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-54/16 20/24-54/16 20/12-54/32 60/12-54/16 20/36-54/16 20/12-54/48 20/60-54/16 20/12-54/80 20/84-54/16