Subtract 2/30 from 12/9
1st number: 1 3/9, 2nd number: 2/30
12/9 - 2/30 is 19/15.
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,
12/9 = 12 × 10/9 × 10 = 120/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
2/30 = 2 × 3/30 × 3 = 6/90 - Subtract the two like fractions:
120/90 - 6/90 = 120 - 6/90 = 114/90 - After reducing the fraction, the answer is 19/15
- In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9-2/30 12/9-4/30 12/18-2/30 12/9-2/60 36/9-2/30 12/9-6/30 12/27-2/30 12/9-2/90 60/9-2/30 12/9-10/30 12/45-2/30 84/9-2/30 12/9-14/30 12/63-2/30