Subtract 16/45 from 2/12
2/12 - 16/45 is -17/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 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 45 × 4 = 180,
16/45 = 16 × 4/45 × 4 = 64/180 - Subtract the two like fractions:
30/180 - 64/180 = 30 - 64/180 = -34/180 - After reducing the fraction, the answer is -17/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/12-16/45 2/12-32/45 2/24-16/45 2/12-16/90 6/12-16/45 2/12-48/45 2/36-16/45 10/12-16/45 2/12-80/45 2/60-16/45 14/12-16/45 2/84-16/45