Subtract 5/90 from 2/12
2/12 - 5/90 is 1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
2/12 = 2 × 15/12 × 15 = 30/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
5/90 = 5 × 2/90 × 2 = 10/180 - Subtract the two like fractions:
30/180 - 10/180 = 30 - 10/180 = 20/180 - After reducing the fraction, the answer is 1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12-5/90 2/12-10/90 2/24-5/90 6/12-5/90 2/12-15/90 2/36-5/90 10/12-5/90 2/12-25/90 2/60-5/90 14/12-5/90 2/12-35/90 2/84-5/90