Subtract 50/30 from 3/12
1st number: 3/12, 2nd number: 1 20/30
3/12 - 50/30 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,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
50/30 = 50 × 2/30 × 2 = 100/60 - Subtract the two like fractions:
15/60 - 100/60 = 15 - 100/60 = -85/60 - After reducing the fraction, the answer is -17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-50/30 3/24-50/30 3/12-50/60 9/12-50/30 3/36-50/30 3/12-50/90 15/12-50/30 3/60-50/30 21/12-50/30 3/84-50/30