Subtract 18/50 from 3/12
3/12 - 18/50 is -11/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
3/12 = 3 × 25/12 × 25 = 75/300 - Likewise, for the 2nd fraction, since 50 × 6 = 300,
18/50 = 18 × 6/50 × 6 = 108/300 - Subtract the two like fractions:
75/300 - 108/300 = 75 - 108/300 = -33/300 - After reducing the fraction, the answer is -11/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-18/50 3/12-36/50 3/24-18/50 9/12-18/50 3/12-54/50 3/36-18/50 15/12-18/50 3/12-90/50 3/60-18/50 21/12-18/50 3/84-18/50