Subtract 30/20 from 3/10
1st number: 3/10, 2nd number: 1 10/20
3/10 - 30/20 is -6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
3/10 = 3 × 2/10 × 2 = 6/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Subtract the two like fractions:
6/20 - 30/20 = 6 - 30/20 = -24/20 - After reducing the fraction, the answer is -6/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-30/20 3/10-60/20 3/20-30/20 3/10-30/40 9/10-30/20 3/10-90/20 3/30-30/20 3/10-30/60 15/10-30/20 3/50-30/20 21/10-30/20 3/70-30/20