Subtract 2/20 from 12/9
1st number: 1 3/9, 2nd number: 2/20
12/9 - 2/20 is 37/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
12/9 = 12 × 20/9 × 20 = 240/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Subtract the two like fractions:
240/180 - 18/180 = 240 - 18/180 = 222/180 - After reducing the fraction, the answer is 37/30
- In mixed form: 17/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9-2/20 12/9-4/20 12/18-2/20 12/9-2/40 36/9-2/20 12/9-6/20 12/27-2/20 12/9-2/60 60/9-2/20 12/9-10/20 12/45-2/20 84/9-2/20 12/9-14/20 12/63-2/20