Subtract 12/30 from 1/9
1/9 - 12/30 is -13/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
1/9 = 1 × 10/9 × 10 = 10/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
12/30 = 12 × 3/30 × 3 = 36/90 - Subtract the two like fractions:
10/90 - 36/90 = 10 - 36/90 = -26/90 - After reducing the fraction, the answer is -13/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9-12/30 1/9-24/30 1/18-12/30 1/9-12/60 3/9-12/30 1/9-36/30 1/27-12/30 1/9-12/90 5/9-12/30 1/9-60/30 1/45-12/30 7/9-12/30 1/9-84/30 1/63-12/30