Subtract 3/5 from 12/30
12/30 - 3/5 is -1/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
12/30 = 12 × 1/30 × 1 = 12/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
3/5 = 3 × 6/5 × 6 = 18/30 - Subtract the two like fractions:
12/30 - 18/30 = 12 - 18/30 = -6/30 - After reducing the fraction, the answer is -1/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30-3/5 12/30-6/5 12/60-3/5 12/30-3/10 36/30-3/5 12/30-9/5 12/90-3/5 12/30-3/15 60/30-3/5 12/30-15/5 12/30-3/25 84/30-3/5 12/30-21/5 12/30-3/35