Subtract 49/50 from 12/18
12/18 - 49/50 is -47/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
12/18 = 12 × 25/18 × 25 = 300/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
49/50 = 49 × 9/50 × 9 = 441/450 - Subtract the two like fractions:
300/450 - 441/450 = 300 - 441/450 = -141/450 - After reducing the fraction, the answer is -47/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18-49/50 12/18-98/50 12/36-49/50 36/18-49/50 12/54-49/50 60/18-49/50 12/90-49/50 84/18-49/50