Subtract 20/30 from 25/12
1st number: 2 1/12, 2nd number: 20/30
25/12 - 20/30 is 17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
25/12 = 25 × 5/12 × 5 = 125/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Subtract the two like fractions:
125/60 - 40/60 = 125 - 40/60 = 85/60 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/12-20/30 25/12-40/30 25/24-20/30 25/12-20/60 75/12-20/30 25/12-60/30 25/36-20/30 25/12-20/90 25/60-20/30 25/84-20/30